Chicken And Dumplings Recipe

Name: Chicken And Dumplings Recipe
Ingredients: 3 tablespoons unsalted butter; 2 carrots, halved lengthwise and cut crosswise into 1-inch pieces; 1 stalk celery, cut into 1-inch pieces; 1 leek (white and light green parts), halved lengthwise and sliced crosswise; 1 1/2 cups all-purpose flour, spooned and leveled; 6 cups low-sodium chicken broth; 1/2 cup dry white wine; kosher salt and black pepper; 1 rotisserie chicken (2 1/2 to 3 pounds), meat shredded; 1/4 teaspoon baking soda; 1/2 cup sour cream; 1 large egg, beaten; 2 tablespoons chopped fresh dill