Chicken and Dumplings

Name: Chicken and Dumplings
Ingredients: 3 tablespoons butter; 1 medium onion, cut into 1-inch pieces; 5 medium carrots, cut crosswise into 1 ½-inch pieces; ½ teaspoon dried thyme; 1 cup (spooned and leveled) all-purpose flour; 1 can (14.5 ounces) reduced-sodium chicken broth; Coarse salt and freshly ground pepper; 1 ½ pounds boneless, skinless chicken thighs, cut into 2-inch pieces; 2 tablespoons chopped fresh dill, or ¾ teaspoon dried dill weed; 1 ¾ teaspoons baking powder; ½ cup plus 2 tablespoons milk; 1 package (10 ounces) frozen peas