Barbecue Chicken
["1 broiler/fryer chicken", "1 small onion, sliced", "2/3 c. ketchup", "1/3 c. vinegar", "1 Tbsp. margarine", "1 clove garlic", "1 tsp. crushed rosemary", "1 tsp. salt", "1/4 tsp. dry mustard"]
["Place chicken, meat side down, in a shallow baking dish sprayed with Pam.", "Top with onion slices.", "Mix, heat and pour the remaining ingredients over the chicken.", "Bake at 400\u00b0 for 1 hour, turning chicken after 30 minutes."]
["chicken", "onion", "ketchup", "vinegar", "margarine", "clove garlic", "rosemary", "salt", "dry mustard"]