Mash the potatoes (make sure there are no lumps).

Sprinkle with salt and drizzle with the butter.

Knead in enough flour to make a pliable dough (usually 3/4 cup is enough).

Roll out to about 1/2" thick and cut into round patties about 4"across.

Heat a non stick skillet and brown on each side 3-4 minutes or until golden brown.

Serve with butter (you can sprinkle them with sugar if you are serving them as a treat).

NB: These are very tasty fried in bacon grease and served with breakfast.