1/4 cup bacon, cooked and crumbled (optional, for garnish)
Instructions
Melt the butter in a large pot or Dutch oven over medium heat.
Add the chopped onion and celery. Cook until softened, about 5 minutes.
Sprinkle the flour over the vegetables and stir constantly for 1 minute to cook out the raw flour taste.
Slowly whisk in the reserved clam juice until the mixture is smooth.
Add the diced potatoes, milk, heavy cream, thyme, salt, and pepper.
Bring the mixture to a simmer, stirring occasionally. Reduce the heat to low and cook until the potatoes are tender, about 15 minutes. Do not let it boil rapidly.
Stir in the drained chopped clams. Heat through for 2 minutes. Do not boil after adding the clams.
Taste and adjust seasoning if needed. Serve hot, garnished with crumbled bacon if desired.
Notes
For a thicker chowder, you can mash a few of the cooked potatoes against the side of the pot before adding the clams.