I think these ribs are best when roasted for 6 hours. 5 is OK. 6 is that much more tender.
Pre heat oven to 220F
Brush ribs with a very light coating of your favorite BBQ sauce. Add pepper, cumin.
Wrap tightly in foil along with half a chopped onion and a few gloves of garlic.
Take the ribs out of the oven after 6 hours. Let them sit for 5 minutes.
The ribs will now be very tender, but not brown.
Take the ribs out of the foil, brush with more BBQ sauce, broil until brown.
