‘Quick’ in relative terms; basically, I threw together tomato paste, water, brown sugar, wine vinegar, some honey for the sake of the thing, Worcestershire Sauce, stirred it smooth, then started adding in salt, pepper, paprika, ground mustard, and chili powder until I started getting a bite when I tasted it. Then I put it on medium-low and walked away for an hour. It came along pretty good; I wanted something that would help with the leftover pork chops, and I succeeded.
I should have maybe added some onion powder, though. Maybe next time. The trick here is to actually use the stuff in the meantime.