East Carolina style, with a little Buffalo too.
Eastern North Carolina is (in)famous for its vinegar-based barbecue sauce. While this is, indeed, tomato-free, the butter makes it almost closer to a buffalo wing sauce than anything.
From the box of L.R. from Winston-Salem, North Carolina.
1 stick butter
1/2 pint of vinegar
Red pepper and black
1/4 cup lemon juice
1 Tablespoon Worcestershire sauce