I wish I could help you, but I've never had it before.
Do they sell that sauce in grocery stores throughout Missouri or only in their restaurants? I'll be driving through the southeast tip of Missouri and will make a stop at a grocery store if I can get some so I can try it.
I don't know if they sell it at Grocery Stores. I know you can order it online, but I was kind of hoping to find my own version.
It's not like other KC sauces. It's dark brown, thin, and has heavy accents of vinegar, black pepper, and garlic. But it's one of my favorites, especially with pulled pork and ribs. We'll just have to see if anyone else here has an idea on it.