Barbecue Sauce - cooking recipe

Ingredients

2 Tbsp. oil
1 medium onion, diced
1 (8 oz.) can tomato sauce
1/2 c. brown sugar
1/4 c. white vinegar
1 Tbsp. Worcestershire sauce
4 tsp. chili powder
2 tsp. salt
1/4 tsp. dry mustard

Preparation

Cook onion in oil about 5 minutes.
Add other ingredients. Heat to boiling, stirring constantly.