Clean and wash the Brussels sprouts. Peel and finely chop the onion. Peel and wash the carrot and also dice finely. Drain the chanterelles. Clean, wash and halve the mushrooms according to size.
Cook cabbage in boiling salted water for about 20 minutes. Wash the fillet, dab dry and cut into slices. Heat 1 tablespoon of clarified butter and fry the mushrooms until golden brown. Add chanterelles and fry briefly.
Season mushrooms, take them out. Heat the remaining clarified butter in the frying fat. Fry the fillet over a high heat while turning. Add onion and carrot and fry everything for about 3 minutes. Season and deglaze with red wine and stock.
Add mushrooms and cream to the meat. Bring everything to the boil again and thicken. Season to taste with salt, pepper and jelly. Drain the sprouts. Arrange everything. Serve with croquettes or buttered spaetzle.