Serves 6 to 8  For the chicken
1 large fryer chicken, neck and gizzards removed
1 onion, cut in half and peeled
3 carrots, cut into large pieces
3 stalks of celery, cut into large pieces
Kosher salt and black pepper, to taste
  For the dumplings
3 cups White Lily all-purpose flour or cake flour
3/4 teaspoon baking soda
3/4 teaspoon table salt
4 1/2 tablespoons olive oil (orig recipe calls for shortening)
1 cup milk (or just enough to make the dough stick together)
  For the chicken
Place the chicken, onions, carrots, and celery in a large stock pot and  cover with water. Bring to a boil, then reduce heat so water maintains a  gentle simmer. Cook chicken for approximately 1 hour or until chicken  is cooked through (approximately165 degrees).
  Once chicken is cooked, remove from the broth and allow to cool.  Remove chicken from the bone and shred into medium-sized pieces,  discarding bones and skin for another use. Pour the chicken broth  through a fine mesh sieve lined with cheese cloth, discarding  vegetables. Reserve 6 cups of the broth for the dumplings (the rest can  be used for another time). 
  For the dumplings
Mix flour, baking soda, and salt together in bowl. Cut shortening into  flour mixture with fingertips until it resembles small peas. Add milk --  1/4 cup at a time -- and stir until a ball of dough just   begins to form, being careful not to over-mix. Roll out the dough onto  floured surface, about ¼ inch thick. Using a pizza cutter or sharp  knife, cut dough into rectangles or squares. Place strips on wax paper  and allow to harden up a little, approximately 30 minutes.
  Over medium-low heat, bring broth to a gentle simmer and drop in  dumplings. Cover and allow to cook for 6-7 minutes. Reduce heat to low  and add chicken. Allow to cook until thickened, approximately 15-20  minutes, or longer. Season generously with salt and pepper.
From: Adapted from www.thekitchn.com