Beef tongue in Caucasian

For the recipe You will need:

1 kg beef tongue - 1 piece (about )

75 g butter

300 g mushrooms (fresh)

1 glass walnuts

2-3 garlic cloves

250 g sour cream

salt

pepper - to taste

Language to boil, cut into large pieces, place in a saucepan, add the crispy onions, boiled and fried mushrooms. Nuts and garlic in the mortar to pound into a homogeneous mass so that the nuts were the oil. Mix with sour cream, if you don't want to use cream, you can substitute cream of 33% fat) salt and pepper and pour the sauce on the tongue. Cover with a lid and place in a slightly warm oven, the sauce does not boil.