Cut the dumplings, e.g. leftovers from the day before, into eighths and fry them in the pan with enough margarine until they are golden brown. Cut the onion into strips and add. Then add the bacon and fry everything for a few minutes. Season with pepper and finally add the black pudding cut into pieces. Fry for a minute and stir again and again, then turn off the stove and let it steep for another two minutes. Stir occasionally.