The easiest meal you could ever hope to make with all the great barbecue flavor you could want.
Season ribs with rub, a little or lot according to taste, and rub the seasoning into the meat. Set aside for an hour and up to overnight (if time allows) well wrapped in the refrigerator. Add ribs to the slow cooker in a single layer, then add another layer crosswise to the first. Continue until all ribs are in the slow cooker. Drizzle with a cup (or more if desired) of barbecue sauce. Cover and cook on high for about six hours (or until tender) or on low for 10.
Serve with additional barbecue sauce.
If desired, ribs may be removed from the slow cooker, placed on a rack over a sheet tray lined with foil (for easy clean up) and placed about four to five inches under a broiler till the barbecue sauce is caramelized and bubbly.