In a bowl, mix together the barbecue sauce, apple cider vinegar, honey, smoked paprika, garlic powder, onion powder, black pepper, and salt.

Rub the ribs with the sauce mixture, ensuring they are well coated.

Place the ribs in the crockpot, standing them upright if necessary.

Pour any remaining sauce over the ribs.

Cover and cook on low for 8 hours or high for 4 hours until the ribs are tender.

Remove the ribs from the crockpot and let them rest for a few minutes before slicing.

Serve with additional barbecue sauce if desired.