Chicken with Cornmeal Dumplings recipes

Name: Chicken with Cornmeal Dumplings recipes
Ingredients: 3 tablespoons unsalted butter; 5 boneless, skinless chicken thighs (1 1/2 pounds), cut into 1-inch pieces; coarse salt; ground pepper; 1/2 bunch scallions, cut into 1/2-inch pieces; 1 medium green bell pepper, seeded and diced medium; 2 celery stalks, diced medium; 2 medium carrots, diced medium; 1 teaspoon dried thyme; 1/4 cup all-purpose flour (spooned and leveled); 2 bottles pilsner or another light- or medium-bodied lager (12 ounces each); 1 can (28 ounces) whole peeled tomatoes; 1 to 2 tablespoons red-wine vinegar; dough