Place the sauerkraut in a sieve and drain well. Wash the chives, shake dry, put some stalks aside for garnishing. Cut remaining chives into fine rolls.
Put 1/4 of the rolls aside for garnishing. Mix yoghurt and sour cream. Season with salt and pepper. Stir in chives. Peel and finely grate the onion. Peel, wash and dry the potatoes.
Grate potatoes. Squeeze the sauerkraut vigorously and pluck. Put sauerkraut, onion, potatoes, eggs and flour in a bowl and mix well. Season with salt and pepper. Heat the clarified butter in portions in a small pan.
Bake 12 potato and sauerkraut pancakes one after the other on medium heat for about 2 minutes on each side until golden brown. Keep warm. Cut ham slices in half lengthwise. Arrange the pancakes with a dollop of cream and ham or smoked pork.
Sprinkle with remaining chives and garnish. Add the rest of the cream.