Barbecue Sauce - cooking recipe

Ingredients

1 c. ketchup
1/2 c. vinegar
1/2 c. cooking oil
2 Tbsp. sugar
2 Tbsp. mustard
2 Tbsp. Worcestershire sauce
1 large onion, chopped

Preparation

Brown onion in oil.
Mix in remainder of ingredients.
Simmer until ready for use.