Miso Clam Chowder

Name: Miso Clam Chowder
Ingredients: 1 tablespoon unsalted butter; 3 ounces pancetta, chopped; 1 /2 cup onion, chopped; 2 garlic cloves, chopped; 1 sprig thyme; 1 cup dry white wine; 1 pound russet potatoes, peeled and cut into 1/2-inch cubes; 2 cups low-salt chicken broth; 1 cup heavy cream; 2 tablespoons miso; 12 scrubbed littleneck clams; Tabasco; Chopped flat-leaf parsley