Barbecue Sauce - cooking recipe

Ingredients

1/2 c. vinegar
1 c. catsup
1 medium onion, chopped
1 tsp. brown sugar
1 tsp. salt
1 tsp. black pepper
1/2 tsp. cayenne pepper
juice of 1/2 lemon
3 Tbsp. Worcestershire sauce
1 Tbsp. prepared mustard
2 Tbsp. butter or margarine

Preparation

Combine all ingredients and cook over heat for about 30 minutes.