The meat is cut into oblong, uniform pieces and place in bowl . Of mustard, white wine, black and red pepper, sugar, dried and crushed bay leaves, vinegar and the oil is cooked marinade in which chopped meat is allowed to stand for 2-3 hours. Onions and mushrooms (if large) cut in half. In cut into thin pieces Elena round put of marinated meat and wrap rolls. Strung on a skewer, alternating with onion and mushrooms and finished skewers bake BBQ.