Mix your flour, baking powder, baking powder, and salt in a bowl. Stir in your shortening and then your milk. You should have a dough that is easy to work.
Next flour a countertop or cutting board and place your dough on it. Knead your dough until it is a consistency you are satisfied with. Don't over work the dough...it will be tough.
Then you have two choices - you can roll the dough to about a 1/8" thickness and cut it into nice looking pieces, or you can just pinch off small pieces and shape them into small balls (about half the size of a golf ball).
Make sure you have enough liquid to completely cover your dumplings. Turn the heat up to a low boil and slowly add the dumplings. Cover the pot and cook for 15 minutes. Watch the pot to make sure it doesn't boil over.
Serve piping hot.