Finely grate the cooked potatoes (from the day before) and knead them with egg, salt, oil and flour to a smooth dough.
For the bacon, cut the pancetta into small cubes, season with bell pepper, paprika, salt and chopped onions and form small dumplings.
For the stuffing, mix the grams with salt, pepper and chopped parsley and form small dumplings.
For the glaze, whisk together eggs, cream, milk, salt, pepper and grated nutmeg.
Form a roll of potato dough, cut into evenly sized pieces, flatten a little, fill with the filling, form dumplings, place in a greased pan and bake in a hot oven at 180 °C for about 20-30 minutes. Then pour the whisked topping over the dumplings and bake for another 15 minutes until the liquid has set.