Wash the potatoes and boil in water for about 20 minutes. Peel and halve the onions and cut them into strips. Cut the whole sausage into slices. Drain potatoes, quench, peel and cut into thick slices. Drain the sauerkraut and squeeze it lightly.
Heat clarified butter in a large, deep frying pan with lid. Fry the sausage in it for approx. 5 minutes, remove it. Steam onions in hot frying fat until transparent. Add potatoes and fry for approx. 5 minutes. Stir in sausage and sauerkraut and steam for about 3 minutes. Approx. 1⁄4 Pour on l water, bring to the boil, cover and stew for approx. 20 minutes. Stir once in between.
Wash parsley, shake dry, chop and fold into the potatoes. Season everything with a little salt, pepper and 1 pinch of sugar. Schmand tastes good with it.