Peel and wash the potatoes and cook them in boiling salted water for about 20 minutes. Drain the potato water and swivel the potatoes dry on the still hot cooking place. Press through a potato press, stir in 3 egg yolks, 5 tablespoons of milk.
Season to taste with salt. Cut off approx. 18 cams from the dough with 2 moistened tablespoons and place them on a baking tray lined with baking paper. Whisk 1 egg yolk with 2 tablespoons of milk and carefully brush the cams with it and sprinkle them with parmesan cheese, leaving a little to garnish.
Bake in the preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for about 15 minutes. Garnish potato noodles with parmesan cheese.