Wash the meat and dab dry. Cut the rind with a sharp knife into a diamond shape. Rub meat with pepper and place in a roaster. Roast in a preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: level 2) for 2 1/2-3 hours, gradually adding 3/4 litres of water. After approx. 1 3/4 hours turn the oven up (electric oven: 225 °C/ convection oven: 200 °C/ gas: level 4). Finish roasting the meat
In the meantime peel and chop the onions. Heat clarified butter in a pot. Fry the diced onions and sauerkraut for about 10 minutes. Add apple juice, bay leaves and caraway, cover and braise at medium heat for about 50 minutes. Stir from time to time
Take the meat out of the oven and let it rest for a while. Pour wine into the stock, bring to the boil. Mix flour with some cold water and thicken the sauce with it. Bring to the boil again, refine with cream. Season with salt and pepper. Season sauerkraut to taste as well. Cut Prager ham into slices. Serve with sauerkraut. Garnish with parsley. Add sauce