Place the chicken breasts, carrot, celery, onion, chicken broth, bay leaf and garlic into your slow cooker cover and cook for 4 hours on high or 7-8 hours on low
When done, shred the chicken with two forks.
In a small bowl make a slurry by mixing the cornstarch with the evaporated milk and stir into the slow cooker, place lid back on.
In a medium size bowl, whisk together the flour, salt, nutmeg, and baking powder.
In another medium size bowl add the egg and milk and whisk until combined.
Add your egg mixture to your flour mixture and stir everything together with a spoon and keep stirring until a dough ball forms.
With a large cookie scoop or tablespoon take pieces of the dough and place beside
each other in the slow cooker.
Cover and cook on high for another 20-30 minutes until dumplings are done and soup has thickened. Don't cook the dumplings too long, they will get harder once they overcook
Serve warm and enjoy!