Cook onion in melted butter until clear, slowly stir in liquid ingredients, adding dry at the end. Bring to a boil for about 15 minutes, stirring continuously. Use in place of any BBQ sauce.
Substitutions: Tomato sauce can be replaced with homemade catsup, bottled ketchup, or for a real kick chili sauce. The hot sauce can be any type you want, Asian hot chili sauce, Tabasco, Chipotle, whatever you like.