Preheat oven to 275℉.
Put the baby back ribs on the cutting board meat side down, peel the membrane off the bone. I always find the thin film to lift and pull at the tip of the rib.
1 full rack baby back rib
Rub the rib with BBQ seasoning generously on both sides.
BBQ Rubs (See notes 1)
Place one aluminum sheet at the bottom of pan and top with baking rack.
Place the rib meat side up on the rack.
Cover with another aluminum sheet tightly.
Bake in the oven for 3 hours.
Take the ribs out after 3 hours and brush generously with chipotle barbecue sauce on both sides.
2 cups Chipotle barbecue sauce
Move the oven rack closer to the top and broil the ribs for 3 minutes. (see notes 2)