Preheat oven to 275°F. Mix together Rib Rub ingredients.
Remove the white membrane from the back side of the ribs (the side with less meat). It should pull off easily. Rinse ribs under cold water and blot dry with paper towels
Massage Rib Rub into ribs. Place ribs on a foil lined tray and cover with sliced onion and garlic. Cover & seal with another piece of foil
Bake ribs for 2 hours. Carefully open the corner of the sealed foil and make sure they are tender. If not, bake another 20 minutes and check again.
Remove ribs and discard juices, onions & garlic. Brush ribs with olive oil and sprinkle with salt & pepper or brush generously with BBQ sauce.
Grill or broil over medium high heat 5-10 minutes.
(Nutrition information provided is an estimate and will vary based on cooking methods and brands of ingredients used.)