Barbecued Chicken
["1 c. water", "1/2 c. vinegar", "4 Tbsp. sugar", "3 tsp. salt", "2 Tbsp. mustard", "1 tsp. black pepper", "2 slices onion", "4 Tbsp. Worcestershire", "1 c. ketchup", "juice of 1 lemon", "6 or 8 chicken breasts, halved"]
["Skin and wash chicken; pat dry and squeeze lemon over.", "Mix other ingredients and pour over chicken.", "Cook in preheated 350\u00b0 oven for 1 1/2 hours; turn chicken after 45 minutes."]
["water", "vinegar", "sugar", "salt", "mustard", "black pepper", "onion", "Worcestershire", "ketchup", "lemon", "chicken breasts"]