Old-Fashioned Chicken and Dumplings

Ingredients:

7 pounds cut up chicken pieces
4 cups chicken stock
2 onions, chopped
3 stalks celery, chopped
3 teaspoons salt
1 egg
1/4 cup milk1 1/2 cups all-purpose flour, divided
1 1/2 teaspoons baking powder
2 tablespoons unsalted butter
2 tablespoons chopped fresh parsley
1 cup water
1/2 teaspoon ground black pepper

Directions: