Cook bacon: In a large pot, cook bacon until crispy. Remove bacon to a paper towel-lined plate and set aside. Reserve about 2 tablespoons of bacon grease in the pot.
Add potatoes and clams: Stir in diced potatoes, minced clams (with their juice), and chicken broth. Bring to a boil, then reduce heat and simmer until potatoes are tender, about 15-20 minutes.
Make roux: In a small bowl, whisk together flour and 2 tablespoons of cold heavy cream until smooth.
Thicken chowder: Gradually whisk roux into the simmering chowder until thickened.
Add remaining cream: Stir in the remaining heavy cream. Season with salt and pepper to taste.
Serve: Garnish with crumbled bacon and fresh parsley. Serve immediately.
Enjoy your creamy clam chowder!
Notes
Tip: For a thicker chowder, add more flour to the roux. For a creamier texture, use half-and-half instead of heavy cream.