Salt and pepper the meat and slowly fry on all sides in foaming butter. Peel and roughly dice the onions and carrots, add to the meat and fry for another 3 minutes. Add bay leaves, cloves, peppercorns, vinegar, red wine or water and jam, cover and simmer for 1.5 to 2 hours, turning 2 to 3 times.
Cut the cooked roast open, strain the sauce and season to taste sweet and sour and pour over the meat.
As a side dish, red cabbage and spaetzle or bread dumplings.