Wash/scrub potatoes thoroughly. Peel and chop the onions. Cut Cabanossi into slices. Heat clarified butter in a large, ovenproof pan with lid and add the potatoes dripping wet. Cover and stew for about 10 minutes. Add onions and cabanossi and fry without lid for about 5 minutes, turning.
Deglaze with cream, boil up briefly and season with pepper and a little salt. Sprinkle with cheese. Gratinate under the preheated grill for 3-4 minutes. Meanwhile wash the chives, shake dry and cut into small rolls. Sprinkle gratinated potatoes with chives