I've seen alot of different inputs on this type of sauce, which happens to be one of my all time favorites. I love it on ribs and certain smoked pork. Most standard recipes I have found to be too vinegary or bland. It has taken me years to perfect this recipe to my taste. Too much of this, or not enough of that can ruin this type of sauce very easily. So I hope you enjoy this as much as I do! SoFlaQuer's Carolina Mustard Sauce ¾ Cup Yellow Mustard ¾ Cup Red Wine Vinegar ½ Cup White Sugar 3 Tbsp. Dark Brown Sugar 2 Tbsp. Butter 2 Tsp. Salt ½ Tbsp. Worcestershire Sauce (Lea & Perrins) ½ Tsp. Soy Sauce ½ Tsp. Tabasco Sauce 1½ Tsp. Course Ground Black Pepper 1 Tsp. White Pepper In a medium saucepan, combine ingredients, stirring to blend. Bring to boil, then lower to simmer for at least 30 minutes. Let stand at room temperature 1 hour before serving. TIP: I use a handheld upright blender at the simmer point to really give it a good blend and aerate the sauce. It makes for a much smoother finished product!