Add broth to a large dutch oven or soup pot and place on medium heat.
In a large skillet, add olive oil, celery, onion and carrots. Cook over medium heat until onions just start to caramelize.
Mix the dumplings together by adding all purpose flour, baking powder and salt to a large bowl.
Add an egg, melted butter and 1 cup chicken broth, stirring until dough comes together.
Sprinkle flour over a clean surface and roll dumpling dough to about 1/4 inch thickness.
Use a small round cookie cutter or a large pastry tip (use the large end) to cut dumpling dough into circles.
Raise pan of broth temperature to high. Add dumplings to boiling broth, stirring to separate. Cook for 20 minutes.
Stir in chopped smoked turkey, cooked vegetables, cream, milk and black pepper. Stir to mix well and lower to medium heat. Cook for 20 minutes.
Turn off the heat and cover dumplings, allow to stand for 30 minutes.
Stir well and serve immediately.