Sauerkraut with Mushrooms

Ingredients

 * 500 g beef bones
 * 400 g sauerkraut
 * 50 g dried mushrooms
 * 1 carrot
 * 1 onion
 * 3 tbsp tomato paste
 * 2 tsp flour
 * 2 tbsp fat
 * 4 tsp sour cream
 * pepper
 * bay leaves
 * greens
 * salt

Directions

 * 1) Separately prepare the bone and mushrooms stocks.
 * 2) Drain the mushrooms through a sieve, rinse and dice.
 * 3) Shred the sauerkraut, place in a saucepan, add some bone stock, fat, tomato paste, cover with a lid and stew for about half an hour, stirring from time to time.
 * 4) Add mushroom stock to strained bone stock, bring to a boil, then add sautéed sauerkraut and vegetables, mushrooms, pepper corns, bay leaves, browned flour with some stock mixed in, salt to taste and boil for another 5 to 10 minutes.
 * 5) Serve the šcy seasoned with sour cream and greens.