In a medium bowl, mix together the barbecue sauce, brown sugar, Worcestershire sauce, smoked paprika, garlic powder, onion powder, cumin, chili powder, black pepper, and cayenne pepper.
Place the ribs in a slow cooker and pour the sauce over them. Cover and cook on low for 8 hours.
Once the ribs are cooked, preheat the oven to 425°F.
Place the ribs on a baking sheet and brush with the remaining sauce. Bake for 15 minutes, or until the ribs are golden brown and the sauce is bubbling.
Serve with extra barbecue sauce, if desired.
Interesting Facts
Slow-cooker barbecued ribs can be served with a variety of sides such as coleslaw, baked beans, potato salad, and cornbread.
Slow-cooker barbecued ribs can be made ahead of time and refrigerated for up to 3 days.
The slow-cooking process infuses the ribs with a smoky and sweet flavor that will have everyone begging for more.