Piedmont North Carolina Style BBQ Sauce III

Grrrrrgh!
Course : BBQ Sauce
From: HungryMonster.com
Serves: 1
 

Ingredients:

1/2 stick butter
1/4 cup onion -- minced
1 1/4 cups cider vinegar
1 1/4 cups ketchup
3/4 tablespoon brown sugar
1 teaspoon Worcestershire sauce
1/4 teaspoon cayenne
1 teaspoon salt and pepper
 

Preparation:

Sauté onion in butter. Add rest and simmer 30 min. Use on pork smoked with vinegar based mop.