For the dough, prepare the baking mix according to the instructions on the packet and leave to rise. (The base can alternatively be prepared with a light yeast dough).
For the topping, peel and chop the onions. Heat the oil in a frying pan and fry the ground pork until crumbly. Fry the onions briefly. Add sauerkraut and bay leaf. Season with pepper, paprika, caraway and a little salt. Bring to the boil and braise covered for about 10 minutes. Let it cool down a little bit.
Knead the dough again and roll out on a little flour in the size of the fat pan (approx. 32 x 39 cm). Place the dough in the greased and floured fat pan and press it up at the edge. Cover the pan and let it stand for another 20 minutes.
For the icing, stir sour cream, cream and eggs until smooth. Season with salt, pepper and nutmeg.
Spread the lukewarm cabbage mixture on the dough and pour the icing evenly over it. Bake in the preheated oven (electric cooker: 200 °C/circulating air: 175 °C/gas: see manufacturer) for approx. 50 minutes. Sour Cream tastes good with it.