1/2 c. oil
1/3 c. wine vinegar
2 tbsp. sugar
2 tbsp. ketchup
1 tbsp. grated onion
1 tbsp. Worcestershire sauce
1 tsp. salt
1/2 tsp. dry mustard
1 garlic clove, minced
Dash of pepper sauce

Combine all ingredients and mix well. Marinate chicken at least 6 hours or overnight, turning occasionally.