here is one from a member named biggie, I couldn't find him in the members list but I saved it to my cpu . hope this helps
Now, my mustard sauce, which is what I like to use on my pulled pork (I'm told this is South Carolina style - now, I guess it's South Shore Mass style). It's basically a tweaked version of a Steven Raichlen recipe.
1 cup mustard (I like to use spicy brown, but you can use anything from dijon to grainy to yellow ballpark style)
3/4 cup cider vinegar
1/2 cup dark brown sugar
1/4 cup pure maple sugar
1 small onion, chopped
1 clove garlic, smashed
1 TBsp hot sauce, or more to taste
1 TBsp Biggie's Rub
1 TBsp butter
Salt and Pepper to taste
1. Melt the butter and saute the onion and garlic over medium low heat until soft (but not browned)
2. Add everything else and bring to a boil over medium heat
3. Simmer on low until thickened, 5-10 min
4. Allow to cool, then throw it all into a blender until it's smooth.