INGREDIENTS
2
lbs Beef tenderloin or boneless sirloin of beef
1/2 lb
Mushrooms
1/2 cup
Onion
3 tbsp
Parsley
2 cups
Beef or chicken stock
3 tbsp
Tomato paste
1 tsp
Worcestershire sauce
1/4 tsp
Black pepper, freshly ground
1/2 cup
Flour
1 tsp
Salt
1/2 cup
Butter
1 cup
Sour cream