Quick Barbecue Chicken
["1 tsp. oil", "medium chopped onion or minced onion", "1/2 c. ketchup", "1/2 c. water", "2 Tbsp. vinegar", "2 Tbsp. brown sugar", "1 1/2 tsp. Worcestershire sauce", "1/2 tsp. chili powder", "1/4 tsp. celery seed", "chicken (with or without bones, 2 to 3 lb.)"]
["Heat the oil in a large skillet. Add onion. Stir in ketchup, water, vinegar, brown sugar, Worcestershire sauce, chili powder and celery seed.", "Bring to a boil.", "Add chicken and spoon sauce over chicken pieces. Cover the skillet and cook for about 30 minutes.", "Turn chicken over and simmer until done."]
["oil", "onion", "ketchup", "water", "vinegar", "brown sugar", "Worcestershire sauce", "chili powder", "celery", "chicken"]