Oven Barbecued Chicken

 6 bone-in chicken breast halves (8 oz each)

1/3 cup chopped onion

3/4 cup ketchup

1/2 cup water

1/3 cup white vinegar

3 Tbsp brown sugar

1 Tbsp Worcestershire sauce

1 tsp ground mustard

1/4 tsp salat

1/8 tsp pepper

1.  Preheat oven to 350 degrees.  In a nonstick skillet coated lightly with oil, brown chicken over medium heat.  Transfer to a 13x9 inch baking dish coated with cooking spray.

2.  Recoat skillet with oil.  Add onion;cook ad stir over medium heat until tender.  Stir in remaining ingredients; bring to a boil.  Reduce heat; simmer, uncovered, 15 minutes.  Pour over chicken.

3.  Bake, uncovered, until a thermometer inserted in chicken reads 170 degrees, 35-45 minutes.