Tennessee Barbeque Sauce

Ingredients:

1 cup catsup
1/2 cup vinegar
1/4 cup worcestershire sauce
2 cups water
1 onion, chopped
1/2 cup brown sugar
1 teaspoon celery seed
1/2 teaspoon salt

Directions:

Combine ingredients in small saucepan and bring to boil. Simmer until reduced to thick sauce, stirring occasionally.