There are so many variations on what can be called barbecue sauce, and so many of them are great. This one is pretty subtle with sweetness, edge and hint of smoke.
Quantities are a guide.
If you are using this sauce to baste while barbecuing, be sure to leave some to slap on after the meat is cooked. The high heat of the barbecue seems to burn off all the subtlety and edge so you’ll need to keep some of the sauce away from the flame.