one 3 to3 1/2 pounds of chicken, cut up
vegetable oil
1 medium onion, chopped
2 tablespoons of vinegar
1/4 cup of lemon juice
3 tablespoons of Worcestershire sauce
1/2 tablespoon of prepared mustard
1 cup of water
1/2 cup of chopped celery
1/2 teaspoon of salt
1/2 teaspoon of red pepper
2 tablespoons of brown sugar
1 cup of catsup