Peel and wash the potatoes. Peel and slice onions, cut sausages into slices. Heat 1 tablespoon of lard in a roaster. Fry the sausage slices for about 5 minutes, turning them over, then take them out again. Heat 1 tablespoon of lard in a frying pan. Fry onion slices and potatoes all around.
Season with salt and pepper. Add sauerkraut, fry for another 5 minutes, season with paprika. Add stock and cook covered for 20-30 minutes. Fold in sausage slices, season to taste. Wash the chives, cut into small rolls and sprinkle on top. Serve with sour cream