Method

1. Wipe meat with clean, damp cloth. Cut it in slices ½-inch thick. Pound with wooden mallet until very thin, then cut in ½-inch thin strips.
2. Wash mushrooms and slice. Sauté them in half the butter. Add chives and heat with mushrooms 3 minutes, stirring.
3. Add the rest of the butter and the meat and cook 6 minutes, stirring constantly to cook the meat through.
4. Add the sour cream, but do not let it boil. Stir in salt and nutmeg and serve.