Peel onions and cut them into rings. Wash the meat and pat dry. Fry in hot oil in a frying pan, season to taste. Fry the onion rings briefly. Add 3/8-1/2 l water and stock. Bring to the boil, cover and braise over medium heat for 1 1/2-2 hours
Peel, quarter, core and chop the apples. Wash, peel and finely grate horseradish. Heat butter. Steam apples for 4-5 minutes. Mix flour and some milk. Stir cream and remaining milk into the apples and bring to the boil. Simmer for about 3 minutes. Stir the horseradish, except for a little bit, into the sauce
Remove the roast and let it rest for about 5 minutes. Pass the roast stock through a sieve. Stir approx. 1/4 l stock into the horseradish sauce and bring to the boil. Season to taste with salt, pepper and lemon juice. Cut the roast open and serve with the sauce. Sprinkle with remaining horseradish. Serve with boiled potatoes and a mixed salad
Drink: cold beer