Beef Stroganoff

Directions

1. 1
   Slice tenderloin tips into very thin strips.
2. 2
   Reduce white wine and vinegar by boiling for several minutes.
3. 3
   Add to brown gravy. Add this sauce slowly to sour cream, stirring constantly, to prevent curdling.
4. 4
   Add butter (not melted).
5. 5
   Saute tenderloin strips in heavy skillet until light brown.
6. 6
   Strain all grease. Saute mushrooms in butter.
7. 7
   Add to beef.
8. 8
   Add sauce, salt and pepper.
9. 9
   Keep warm.
10. 10
    Serve over steamed rice, noodles or spaetzle. Serves 4.