Wash the potatoes, cover and cook for about 20 minutes. Peel and chop the onion. Fry the ground pork in hot oil until coarse. Fry onion briefly. Season with pepper and a little salt. Add barbecue sauce and 150 ml water, simmer for about 5 minutes.
Wash the chives and cut into small rolls. Mix with sour cream and yoghurt, season. Drain potatoes, cut lengthwise, press on a little and spread on plates. Pour ground pork fat and sour cream on the potatoes.
Coleslaw.