White, red (krasnyj),* and other mushrooms are prepared the same way, that is, clean and wash them and cut them up. Dip in flour. Melt ¼ lb butter in a skillet or a saucepan (if desired, fry 1 onion in the butter), add the mushrooms and some salt, and fry over a medium flame. Fry first on one side, then turn over and fry the other side. When the mushrooms are cooked, pour in ½ glass sour cream. Bring once to a boil, sprinkle with parsley and dill, and serve.