1/2 cup onion, chopped fine
2 tablespoons butter
1 cup sliced, fresh mushrooms
1/2 cup sweet or sour cream
2 tablespoons flour
4 to 6 steaks

Brown onions lightly in butter; remove from butter. Slowly brown steaks on both sides in the butter. Spread browned onions over the steaks, cover, and cook very slowly for 1/2 hour.

Make a smooth sauce of the cream, flour and mushrooms. Add to meat while hot. Cover and let simmer for 20 minutes.