Remove meat from chicken, cover with foil and keep in a warm oven while you cook the dumplings. Save the bones to make a broth for soup, if you prefer.
If you roasted your chicken, strain off the remnants from the pan juices into a large pot that you will use to cook your dumplings. Add in the additional broth and season to your liking, (salt, pepper, poultry seasoning, etc)
Once your broth is prepped, you could start dropping them into it once it begins a rolling boil. Otherwise, lay cut dumplings on waxed paper until ready to use. Continue to roll out the rest of the dough, reusing any scraps you may have.
Once all dumplings have been added to the pot, simmer them stirring frequently to avoid any sticking. Here, you can further adjust the seasonings to your personal liking. As stated above, I used about 2 t. of salt, some more pepper and a few shakes of poultry seasoning. To thicken the sauce follow the directions below for the beurre manie. It's a French technique which really silkens up the sauce beautifully, adding a buttery flavor as well!