Place diced bacon in a large Dutch oven over medium heat. Cook, stirring occasionally, until crisp, about 6–8 minutes; remove half and set aside.
Add butter to the drippings, then sauté onion, celery, and garlic until soft and translucent, about 6–8 minutes.
Stir in flour and cook, stirring constantly, until bubbly, about 1 minute.
Slowly whisk in clam juice, heavy cream, and milk; bring to a gentle simmer.
Add potatoes, salt, pepper, parsley, bay leaves, and thyme; cover and simmer until potatoes are tender, about 15 minutes.
Finish
Remove bay leaves, stir in clams with their juice and reserved bacon, and heat through without boiling, about 2–3 minutes.
Ladle into bowls and serve with oyster crackers.
Notes
Testing Note (prep): Ensuring potatoes are cut uniformly speeds cooking and prevents mushy edges.Testing Note (cooking): Whisking continuously when adding liquids stops lumps from forming.Testing Note (storage): Freeze in single-serve containers, then reheat with a splash of milk for best texture.
Nutrition
Serving: 1cupCalories: 367kcalCarbohydrates: 21g
Keyword bacon, clam chowder, Comfort Food, New England chowder, seafood soup