Wash the potatoes and cook in salted water for 30-35 minutes. In the meantime, heat oil in a pan and fry the sauerkraut in it at medium heat for about 5 minutes. Season with salt and pepper and then deglaze with apple juice.
Crush juniper berries and add them together with the bay leaf. Let it braise for about 10 minutes. Add sour cream and tomato paste and stir in. Season to taste with salt and pepper. Break open the potatoes in the middle and fill with the sauerkraut.
Grate cheese over it and sprinkle with hazelnut leaves. Bake in a preheated oven (electric: 200 °C/ gas: level 3) for 8-10 minutes. Sprinkle with parsley and arrange on a plate.
Serve garnished with salad, tomato slices and parsley.