Dice the meat. Peel and dice the onions; Wash, clean and dice the soup vegetables. Heat the lard in a sufficiently large saucepan and sear the meat cubes on all sides. Add the onion and soup vegetable cubes to the meat. Braise briefly, add salt, pepper, the horseradish, red wine and bay leaf and cook everything in a closed saucepan over medium heat for approx. 45 - 60 minutes. Mix in the cornstarch and thicken the sauce with it.