Wash the potatoes and boil them in plenty of salted water.
Peel them, squeeze them with a potato masher, mix them with the sifted flour, egg and a little salt.
Dust the work surface well with flour and knead the mixture until soft and smooth.
Shape long finger-thick strands of dough and cut them with a small knife into many small pieces about 2 centimeters long.
In a pot boil salted water, pour in the gnocchi and scoop them out with a skimmer as soon as they rise to the surface and are ready to be seasoned or sautéed.