2 to 2 1/2 lbs. chicken, cut up
1/2 c. chili sauce
4 tbsp. cider vinegar
1 tsp. Worcestershire sauce
1/2 tsp. dry mustard
1 or 1 1/2 cloves garlic, minced
1 c. onion, minced
4 tbsp. vegetable oil

Mix all ingredients in bowl. Marinate chicken at least 4 hours. Cook on grill until done.