Prepare oven-baked barbecue chicken by placing the chicken pieces in a glass baking dish, adding the sauce, and baking until the chicken reaches an internal temperature of 165 degrees Fahrenheit. For easier cleanup, line the dish with foil before adding the chicken. This recipe requires about 10 minutes of preparation time and an hour for cooking.
Make the sauce by adding 1/3 cup of ketchup, 1/3 cup of vinegar, 1/4 cup of brown sugar, 1/2 cup of water and 2 teaspoons of Worcestershire sauce to a bowl. Whisk in 4 teaspoons of melted butter, 2 teaspoons of salt and 2 teaspoons of dry mustard. Add 2 teaspoons of chili powder, adjusting to taste, and pour the sauce over the chicken parts, turning them to ensure it coats the bottom of each piece. If rushed for time, substitute your favorite bottled barbecue sauce.
Preheat an oven to 400 F, and place the chicken inside it. Bake the barbecue chicken until the juices run clear and the meat is no longer pink near the bone, or use an instant-read thermometer to test the internal temperature of the meat.
For a thicker sauce, continue baking the chicken for another 15 to 20 minutes. Serve barbecue chicken with mashed potatoes or seasoned rice. Add a roll and salad for a complete meal.