Boil the potatoes in water to cover until you can easily poke a fork through them. Drain, peel, and mash them.
Form a mound of potatoes on a work surface (smooth wood, formica, or marble). Let cool for 5 minutes. Then combine the potatoes with the 2½ cups/285 g flour and the salt and gently work the mixture together with your hands. Do not work the mixture more than necessary. Form a we