soak the breadroll and sueeze out water mix with minced vegetarian meat equivalent or meat,egg,cream,salt and pepper and last but not least the mushroom puree, make a dough.Divide mixture equally onto the cabbage leafes,tuck in and wrap little parcels.Heat rest butter in oven proof pan and tightly pack in the parcels. Heat oven to medium heat. Cook the parcels for ten minutes then add the stock and cook for a further 50 minutes.