Amazing 8 Salted Caramel Cinnamon Sourdough Pop Tart Bars

April 10, 2026
Written By Emily Harrison

Biographical Info: Emily "Em" Harrison is the founder and head recipe developer at Cookery Command. Raised in a Midwestern kitchen full of timeless family recipes, she combines her degree in nutrition science with her professional test kitchen experience to create reliable, delicious, and approachable meals for the modern American home cook. Her goal is to help you feel confident and joyful in your kitchen, turning everyday cooking into a memorable experience.

Oh, get ready for this! I’ve cracked the code on turning that humble, slightly tangy sourdough discard into something absolutely decadent. If you’ve been waiting for a sign to merge nostalgic comfort with artisan technique, this is it. We’re talking about the most incredible Salted Caramel Cinnamon Sourdough Pop Tart Bars you will ever eat. The crust? It’s unbelievably flaky, thanks to that slight tang from the starter balancing out the pure sweetness of the homemade salted caramel and warm cinnamon swirl inside. When I first started Cookery Command, my goal was always to blend the heritage baking knowledge from my Ohio kitchen—the kind Emily Harrison grew up with—with tested, reliable techniques. These bars are the perfect example: old-school flavor made foolproof in your modern kitchen. You can read more about Emily’s philosophy on blending tradition and technique over on our About Us page, but trust me, creating these bars is where the magic happens.

Why You Will Love These Salted Caramel Cinnamon Sourdough Pop Tart Bars

Honestly, I think these bars might be my new favorite thing to bake on a weekend. I’ve made a lot of Sourdough Discard Recipes over the years, but this one really hits hard because it blends everything perfectly. You won’t be able to stop eating them!

  • You get that incredible, craveable balance of savory and sweet, making these truly unique Tangy Sweet Baked Goods.
  • The crust is wonderfully flaky—you’d never guess that tangy sourdough discard makes it so light!
  • It uses up your starter when you don’t want to feed it *again*. Hello, no-waste baking!
  • We skipped the fussy hand-pie assembly and went straight for easy-to-cut, bakery-style bars.

If you’re looking for more indulgent sweets, check out our whole section of great dessert recipes!

Ingredients for Your Salted Caramel Cinnamon Sourdough Pop Tart Bars

Okay, gathering everything upfront is half the battle, especially when we’re balancing sourdough tang with all that sweet caramel goodness. You’ll notice we have four distinct components, and it’s crucial to keep the ingredients separate until we start assembling, especially that butter for the crust! If you need a refresher on refreshing your starter, I walked through my process for learning how to make my starter from scratch right here, but for this recipe, we want active discard ready to go.

For the Spiced Sourdough Crust

The secret to that Flaky Sourdough Pastry is keeping everything, and I mean *everything*, cold. Seriously, this is where we make or break the texture! Don’t even look at the butter until it’s rock hard and cubed.

  • 1 cup active sourdough discard (fed 4-12 hours prior)
  • 1 1/2 cups all-purpose flour
  • 1/2 teaspoon salt
  • 1/2 cup (1 stick) cold unsalted butter, cubed
  • 1/4 cup ice water

For the Cinnamon Sugar Filling

This part is easy peasy—it’s the heart of those classic Cinnamon Swirl Treats! Just a quick whisk and it’s ready to go into the oven.

  • 1/2 cup granulated sugar
  • 1 tablespoon ground cinnamon
  • 1/4 cup light brown sugar, packed

For the Homemade Salted Caramel

Making caramel from scratch builds so much trust in your abilities, trust me! Don’t be intimidated by the bubbling, just have your cream measured out nearby. This is what makes our Salted Caramel Baking Ideas truly *gourmet*.

  • 1/4 cup heavy cream
  • 1/2 cup granulated sugar
  • 1/4 cup water
  • 1/4 cup light corn syrup
  • 1/2 cup heavy cream, warmed
  • 1 teaspoon vanilla extract
  • 1/2 teaspoon flaky sea salt (for caramel)

For the Finishing Glaze

We finish these bad boys with a simple, perfect drizzle.

  • 1 large egg, beaten (for egg wash)
  • 1/4 cup powdered sugar (for glaze)
  • 1 teaspoon milk (for glaze)

Step-by-Step Instructions for Perfect Salted Caramel Cinnamon Sourdough Pop Tart Bars

Now we get down to the fun part—putting it all together! This process takes you from simple ingredients to what I honestly consider Bakery Style Sourdough treats right in your own pan. Follow these steps closely, especially regarding temperature, and you’ll end up with the flakiest, most satisfying Homemade Pop Tart Recipe imaginable. We’re making a classic layered bar here, so take your time assembling the layers for the best flavor fusion.

Mixing and Chilling the Sourdough Pastry Dough

First things first: handle that crust gently! In a big bowl, whisk your flour and salt together. Now, toss in your cold butter cubes. You need to ‘cut’ that butter in using a pastry blender, or honestly, just use your fingertips if they stay cool. You’re looking for coarse crumbs, and you want some pea-sized chunks of butter left in there—that’s what creates those gorgeous flaky layers in your Artisan Pop Tarts. Once the butter is worked in, stir in your active sourdough discard. Mix it just until it barely holds together. If it seems too dry, splash in ice water, one tablespoon at a time, until a dough forms. Resist the urge to knead it! Form it into a flat disk, wrap it tight, and stick it in the fridge for at least one hour. That chilling time is non-negotiable for a sturdy, flaky pastry.

Creating the Salted Caramel Baking Ideas Filling

While the dough chills, let’s nail this caramel. In a saucepan, combine the 1/2 cup sugar, water, and corn syrup. Heat it over medium heat. The trick here is to stir only until the sugar dissolves, and then you absolutely *must* stop stirring. Let it bubble away until it hits a deep amber color—think rich maple syrup, not light honey. Watch it super closely because it goes from perfect to burnt chocolate in seconds! Once it’s amber, pull it off the heat immediately. Now, slowly pour in the warmed heavy cream while whisking constantly. Be warned: it’s going to bubble up like a volcano! After it calms down, whisk in the vanilla and your flaky sea salt. Let this glorious caramel cool down a bit before we even think about layering it.

Assembling and Sealing Your Sourdough Dessert Bars

Preheat your oven to 375°F (190°C) and line a baking sheet with parchment paper; trust me, cleanup is so much nicer this way. Take out half your dough and roll it on a lightly floured surface until it’s about 1/8 inch thick, like a good shortbread. Cut this into your bar shapes—I usually go for 3×4 inches. Do the same with the second piece of dough reserved for the tops. Lay out the bottom layer. Now, mix up your cinnamon filling ingredients (sugar, brown sugar, cinnamon) and sprinkle about a teaspoon of that mixture onto the center of each bottom piece. Spoon a teaspoon of the slightly cooled salted caramel right on top of that cinnamon pile. Don’t overfill, or you’ll have a huge mess! Take the top pieces and lay them right over. Use a fork to really press and crimp the edges of the top and bottom layers together. That seal is crucial for keeping your filling contained.

Baking and Applying the Final Drizzle

Before the oven, brush the tops of every bar generously with your beaten egg wash—that’s what gives you that beautiful golden shine. Then, grab a sharp knife and cut two little slits right in the top of each bar. These vents are super important because they let the steam escape, stopping your pastry from getting soggy or exploding! Bake them for 18 to 22 minutes, or until they’re beautifully golden brown and smell like heaven. While they cool just slightly, whisk your powdered sugar and milk for a simple, sweet glaze. Drizzle that glaze over the warm bars, and then, because we’re going all out, hit them again with any extra salted caramel you might have left over. Let them set up completely before slicing between the bars completely.

If you want another great recipe that features that salty-sweet combo, check out my guide to Apple Pie Cheesecake with Salted Caramel—it’s another showstopper!

Tips for Success with Your Salted Caramel Cinnamon Sourdough Pop Tart Bars

I’ve learned a few things over the years testing every variation of these bars, especially when trying to achieve that perfect Bakery Style Sourdough texture without sacrificing flavor. Here are the three things I always stress to make sure your bars turn out amazing and not just… sticky.

First, let’s talk tang versus sweet. If your sourdough starter is super active and hungry, it will bring a lot of sharpness to the crust. To counter that, make sure you are generous with the brown sugar in the cinnamon filling; that molasses really helps soften the sour notes beautifully. If you find your discard is just too intense, try to use discard that was fed longer ago, maybe 10 or 12 hours, like I mentioned in the notes—less acidic, easier to handle flavor-wise!

Second, the butter temperature is your best friend. I know I sound like a broken record, but seriously, if your butter melts even a little bit while you’re cutting it into the flour, you aren’t getting flakes; you’re getting biscuits. Keep your butter cubed, and if your hands are hot, stick the bowl back in the freezer for five minutes before you start working the dough again. Cold butter expands in the oven, creating those lovely pockets of air and flaky structure.

My last major tip is about the moisture of that filling. Don’t be tempted to use too much caramel in the center. When you bake something sweet and sticky like this, if the liquid pools too much or soaks too deeply into the dough before it sets, it will create a gummy layer instead of crisp pastry. Stick to that teaspoon amount per bar, and rely on the egg wash and vents to keep everything contained and crisp up top. For more ways to use up that starter creatively, you absolutely must check out my recipe for Sourdough Discard Cinnamon Rolls—they are heavenly!

If you’re looking for other indulgent, chewy treats to pair with these, you might enjoy looking at how I handle things like homemade marshmallows sometime, too, in my guide on homemade marshmallows!

Ingredient Notes and Substitutions for Your Sourdough Baking Projects

I know sourdough starters can feel intimidating, but they’re really just quirky roommates in your fridge! People always ask me about the discard specifically, and it’s a great place to start tweaking things. For these bars, I requested active discard—meaning it was recently fed and bubbly, usually 4 to 12 hours after feeding. That active state gives you the best lift and the mildest tang for these sweet treats. If you use cold, straight-from-the-fridge unfed discard, your crust will be denser, and the sour note will be much stronger, which you might actually love if you prefer a more powerful Tangy Sweet Baked Good!

When it comes to the fat element, stick to butter if you possibly can. Margarine just won’t give you the right flavor or melt quality for that flaky pastry we’re aiming for in these Sourdough Baking Projects. If you are out of butter, you can use a mix of half butter and half vegetable shortening—it’s a classic pastry trick that keeps things flaky, even if the flavor isn’t quite as rich as all butter.

Now, about that corn syrup in your caramel—I know some folks prefer to avoid it, and I get it! Corn syrup helps stop the sugar from crystallizing when you make that deep caramel color. If you have to swap it out, you can use an equal amount of honey or maple syrup instead. Just be extra careful when heating it up, because honey tends to burn faster than plain sugar. If you swap, you might get a slightly different chewiness in your final caramel, but it’ll still be delicious! For more inspiration on using your starter in surprising ways, take a peek at my recipe for Homemade English Muffins—another fantastic way to use up that starter!

Storage and Reheating Instructions for Leftover Salted Caramel Cinnamon Sourdough Pop Tart Bars

The tough part about making these irresistible bars is having leftovers! Since we have a gooey filling, storage needs a little bit of care. Don’t worry, they hold up really well, and we can bring that pastry back to life in minutes.

If you have any of these wonderful Sourdough Dessert Bars left over, the best place to keep them is actually at room temperature, not the fridge. Seriously! Pop Tart fillings, especially caramel, get rock hard when chilled, and we want soft, chewy centers. Store them in an airtight container on the counter for up to three days. Make sure they are completely cooled before sealing them up! This keeps the crust from getting steamed and soft.

Now, if you made a huge batch and need them to last longer than three days, then pop them into the fridge. But listen to me: you MUST reheat them before eating!

A Quick Reheat Tip

When you pull them from the fridge, the caramel will be stiff. To get that lovely gooey texture back—the kind you get when you make my easy toffee pretzels—you need a quick blast of heat. I recommend popping one (or two, if you’re sneaking them!) onto a baking sheet and warming it in a toaster oven set to about 325°F for about 5 to 7 minutes. That gently warms the filling, softens the caramel, and crisps up the flaky sourdough crust again. Avoid the microwave; it will steam the pastry and make it chewy in the wrong way!

Serving Suggestions for Gourmet Breakfast Bars

These aren’t your average convenience store pastry, that’s for sure! Because these Gourmet Breakfast Bars are so intensely flavored—all that salty caramel with the sweet cinnamon swirl mixed into that rich sourdough—you really need to serve them with beverages or sides that cut through that decadence. Trying to eat one plain with a glass of milk feels like overkill, in the best way possible, of course!

When I serve these up for a weekend brunch, my absolute must-have pairing is a good, strong cup of coffee. Nothing fancy, just dark roast or French press. The slight bitterness of the coffee is the perfect counterpoint to the intense sweetness of the caramel and sugar coating. It really cleanses the palate between bites.

Brightening Up Brunch with Fruit

If you’re planning on serving these as part of a bigger spread, you need some acid to balance things out. Forget heavy whipped cream! Think fresh, bright fruit. A simple bowl of mixed berries—raspberries and blackberries work especially well because they have a little natural tartness—is the perfect accompaniment. Sliced green apples are also fantastic; their crispness contrasts beautifully with the chewy caramel inside the bar.

Another thing I love to do if I’m feeling really fancy is serve them alongside homemade yogurt that I’ve just mixed with a bit of lemon zest. It’s creamy without being too sugary, letting the pop tart bar shine as the star.

Savory Sides to Make it a Meal

Yes, you read that right—savory neighbors help these sweet bars shine! If you make a big batch for brunch, pair them with something salty and rich to round out the meal. Think crispy bacon or a beautiful little frittata seasoned simply with herbs. These salty elements really highlight the sea salt we put into that homemade caramel topping. It reminds everyone that these are both Sweet and Salty Treats!

When you put all these elements together on the table, it feels like you’ve pulled off a true bakery feat. Everything you need for a fantastic brunch spread, including these stellar bars, is laid out in my general guide to breakfast and brunch recipes!

Frequently Asked Questions About Making Salted Caramel Cinnamon Sourdough Pop Tart Bars

I totally get it—once you start baking with sourdough, you end up with discard, and you need to know how to get the best results for different projects! Hopefully, I’ve answered the main structure questions above, but here are a few more things people often ask when they try making these Sourdough Dessert Bars.

Can I use unfed sourdough discard in this Homemade Pop Tart Recipe?

That’s a fantastic question! Yes, you absolutely *can* use unfed discard, which is usually the stuff you pull straight from the fridge. However, you’ll notice a big difference in flavor. Active, fed discard (which is what I called for) is bubbly and has a mild, pleasant tang. Unfed discard is significantly more acidic—it’s sharper, almost vinegary.

If you use unfed discard, your crust will have a stronger, more pronounced sour flavor. This isn’t a bad thing, especially since we’re pairing it with sweet caramel! But just be ready for a bolder, more Tangy Sweet Baked Good experience. You might even want to slightly increase the brown sugar in the cinnamon layer to compensate if you aren’t a huge fan of sour notes.

What is the best way to prevent the caramel filling from oozing out?

This is the fear that keeps caramel bakers up at night! Caramel is liquid gold when it’s hot, and it wants to escape, especially in a homemade pastry like this. My number one tip is to make sure you use the proper amount—stick strictly to that 1 teaspoon of cooled caramel per bar. Don’t be tempted to add extra because you love it so much!

Second, and this is crucial for achieving that perfect sealed edge, you need to use water *and* firm pressure. When you place the top piece of dough over the filling, brush the edges of the bottom dough lightly with water. Then, when you crimp with the fork, press down hard enough that you can clearly see the tines marking the dough all the way around, creating a strong seal. The tighter the seal, the less chance your delicious filling has of leaking out during baking. A good seal keeps everything contained so you get beautiful, clean Breakfast Pastry Bars.

If you’re looking for more simple recipes that still feel incredibly gourmet, take a look at my collection of easy dessert appetizers and snacks—sometimes you need a treat without the long baking time!

Nutritional Estimate for These Sweet and Salty Treats

I always feel a little bit guilty sharing the nutritional breakdown for something this indulgent, but hey, transparency is key here in the kitchen! We test everything relentlessly, and while these bombs of flavor are certainly a treat, it’s good to know what you’re digging into. Remember, this is just an estimate for our Sweet and Salty Treats, and the numbers can swing a bit depending on the exact brand of butter, the type of flour, or how much caramel drizzle you sneak onto your own plate before plating! Remember, these are based on 8 even servings.

If you want to see the full methodology and how we calculate these things, you can always look at the detailed information we keep on file!

  • Serving Size: 1 bar
  • Calories: 450
  • Sugar: 45g
  • Sodium: 300mg
  • Fat: 25g
  • Saturated Fat: 15g
  • Unsaturated Fat: 10g
  • Trans Fat: 0g
  • Carbohydrates: 55g
  • Fiber: 2g
  • Protein: 5g
  • Cholesterol: 70mg

Since these are rich, decadent bakes, they fit right into that special occasion category. Enjoy them when you make them, knowing the sourdough starter provided a little extra something your typical pastry doesn’t have!

Share Your Weekend Baking Projects

Phew! We made it through the technical side of turning discard into something truly spectacular. Now that you have these amazing Gourmet Breakfast Bars cooling on your counter, I really want to know how they turned out for you! That’s the whole point of sharing these recipes, right? We want to build that kitchen community together.

Did the sourdough tang show up exactly how you like it? Did the salted caramel crust up wonderfully? Please, please, please drop a comment below with your rating and any little tweaks you made to adapt this for your family. Hearing about your success stories—or even funny baking mishaps—is the highlight of my week!

And you know I live for seeing your bakes on social media! Snap a photo of your finished bars—glaze dripping, salted caramel poking out—and tag us. Seriously, it makes my day to see my recipes making their way from my test kitchen into your homes. You can always reach out directly through our Contact page if you have detailed questions about the process later on, but I hope that when you tackle these Weekend Baking Projects, everything comes out perfectly!

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Salted Caramel Cinnamon Sourdough Pop Tart Bars

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Create flaky, artisan pop tart bars using your sourdough discard. These bars feature a tangy sourdough crust filled with sweet cinnamon and topped with homemade salted caramel.

  • Author: emilyharrison
  • Prep Time: 30 min
  • Cook Time: 25 min
  • Total Time: 165 min
  • Yield: 8 servings 1x
  • Category: Dessert
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Ingredients

Scale
  • 1 cup active sourdough discard (fed 412 hours prior)
  • 1 1/2 cups all-purpose flour
  • 1/2 teaspoon salt
  • 1/2 cup (1 stick) cold unsalted butter, cubed
  • 1/4 cup ice water
  • 1/2 cup granulated sugar
  • 1 tablespoon ground cinnamon
  • 1/4 cup light brown sugar, packed
  • 1/4 cup heavy cream
  • 1/2 cup granulated sugar
  • 1/4 cup water
  • 1/4 cup light corn syrup
  • 1/2 cup heavy cream, warmed
  • 1 teaspoon vanilla extract
  • 1/2 teaspoon flaky sea salt (for caramel)
  • 1 large egg, beaten (for egg wash)
  • 1/4 cup powdered sugar (for glaze)
  • 1 teaspoon milk (for glaze)

Instructions

  1. Prepare the Dough: In a large bowl, whisk together the flour and salt. Cut in the cold butter using a pastry blender or your fingers until the mixture resembles coarse crumbs with some pea-sized pieces of butter remaining. Mix in the sourdough discard until just combined. Gradually add ice water, one tablespoon at a time, until the dough just comes together. Do not overmix. Form into a disk, wrap in plastic, and chill for at least 1 hour.
  2. Make the Cinnamon Filling: In a small bowl, mix the 1/2 cup granulated sugar, cinnamon, and brown sugar. Set aside.
  3. Make the Salted Caramel: Combine 1/2 cup sugar, 1/4 cup water, and corn syrup in a small saucepan over medium heat. Stir until the sugar dissolves, then stop stirring. Cook until the mixture turns a deep amber color (about 8-10 minutes). Remove from heat. Carefully whisk in the warmed heavy cream (it will bubble vigorously). Stir in the vanilla extract and flaky sea salt. Let cool slightly.
  4. Assemble the Bars: Preheat your oven to 375°F (190°C). Line a baking sheet with parchment paper. On a lightly floured surface, roll out half of the chilled dough into a large rectangle, about 1/8 inch thick. Cut the dough into 3-inch by 4-inch rectangles. Repeat with the remaining dough, yielding about 8-10 bars total.
  5. Fill the Bars: Place half of the dough rectangles on the prepared baking sheet. Brush the edges lightly with water. Spoon about 1 teaspoon of the cinnamon sugar mixture onto the center of each rectangle. Drizzle about 1 teaspoon of the cooled salted caramel over the cinnamon sugar. Top with the remaining dough rectangles. Crimp the edges firmly with a fork to seal.
  6. Bake: Brush the tops of the bars with the beaten egg wash. Cut two small slits in the top of each bar to allow steam to escape. Bake for 18-22 minutes, or until golden brown.
  7. Glaze and Finish: While the bars cool slightly, whisk together the powdered sugar and milk to make a thin glaze. Drizzle the glaze over the warm bars. Drizzle any remaining salted caramel over the glaze. Allow to cool completely before serving.

Notes

  • For the flakiest crust, keep your butter and water as cold as possible when making the dough.
  • If your sourdough discard is very wet, you may need slightly less ice water. The dough should be firm but pliable.
  • If you prefer a less tangy flavor, use a sourdough starter that was fed 12 hours ago, as the acidity will be lower.
  • You can substitute store-bought caramel sauce, but the homemade salted caramel provides better flavor balance.

Nutrition

  • Serving Size: 1 bar
  • Calories: 450
  • Sugar: 45
  • Sodium: 300
  • Fat: 25
  • Saturated Fat: 15
  • Unsaturated Fat: 10
  • Trans Fat: 0
  • Carbohydrates: 55
  • Fiber: 2
  • Protein: 5
  • Cholesterol: 70

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