This is pretty typical of the sauces in the BBQ joints in the piedmont area of NC. Its great on pulled pork sandwiches. -RP
1 qt cider vinegar, 6oz yellow mustard, 1/4 lb butter, 3/4 T salt, 1/2 T black pepper, 1/2 T cayenne pepper, Juice of 1/2 lemon, 1/2 t sugar,
32 oz catsup. Cook at a simmer for 10 minutes.