Traditional Knedlicky (Czech Potato Dumplings) - cooking recipe

Ingredients

3 cups mashed potatoes (real, not fake, leftovers work great)
3 cups all-purpose flour (I've never tried any other kind, so I don't know how well it would work)

Preparation

Fill a large soup pot (not sauce pan, too small) about half full of water and bring to a boil.
Using just your hands, knead together equal amounts mashed potatoes and flour in a bowl until it forms a dough.
Form dough into baseball/tennis ball sized balls.
Carefully, so as not to splash, drop dumplings one at a time into boiling water. Do not over crowd pot. You only want a single layer of dumplings.
The dumplings will sink to the bottom.
Bring water back to a boil and then simmer.
When the dumplings begin to float they're done. Don't take them out of the water right away, let them float for about 5 minutes before removing them.
Remove finished dumplings from water with a slotted spoon and place in a bowl or on a serving plate.
Serve alongside any kind of roast and top with gravy or butter and salt and pepper. Yum!
Leftovers can be cut up into bite-sized pieces.