1 stick butter
1 c. cider vinegar
1 lg. sour pickle, minced
1 tbsp. minced onion
2 tbsp. Worcestershire sauce
1 tbsp. lemon juice
1 tbsp. molasses
Salt and pepper to taste

Combine all ingredients except salt and pepper in a small saucepan. Heat over low flame just long enough to melt butter, stirring frequently. Add salt and pepper to taste. Use sparingly as a basting sauce while pork tenderloin is cooking. Add just enough of the remaining sauce to moisten chopped tenderloin just before serving.