Cut and coarsely dice the potatoes and boil them in salted water for approx. 20 min. Drain the potatoes and mash or press them through a press and then leave them to cool. Coarsely grate the raw potatoes. Add the cornflour, nutmeg and salt, knead the dough well. Form 12 dumplings each weighing 60 g and place them in boiling salted water with 1 tbsp oil. Cook the dumplings for approx. 35 minutes until they rise to the top, then remove them with a ladle.