1 large beef brain
5 egg whites
2-3 tablespoons breadcrumbs
1 teaspoon minced dill
1 onion
1 tablespoon butter
salt and pepper
a little flour
For sauce:
1 cup sour cream
1/2 cup milk
1 tablespoon flour
1 tablespoon butter
a little minced dill
salt

Boil the brain, sieve it and then mix with the chopped and fried in butter onion, dill, salt, pepper, bread crumbs and the whipped egg whites at the end. Pour this mixture in a lidded mold which was previously buttered and floured. The mold must be only 3/4 full. Place to boil in a larger pan full of water. The sauce: Lightly fry the flour in butter and then add the milk. Add sour cream, dill and salt. Let come to a boil and then serve warm.