Barbecue Chicken

1 Cup Catsup
1 Teaspoon Salt
2 Tablespoons Worcestershire Sauce
1 1/2 Teaspoon Garlic Salt
1/2 Teaspoon Oregano
1/2 Cup Vinegar
2 Tablespoons Brown Sugar
1 1/2 Teaspoon Onion Salt
1 1/2 Teaspoon Pepper
Boneless Skinless Chicken Breasts

Place chicken breasts in a 9x13 baking dish. Mix together all ingredients and pour over the chicken. Cover with foil and bake at 300 for 2 to 2 1/2 hours. Take off the foil for the last 15 minutes of baking.