01 -
Preheat oven to 300°F (150°C). Remove the silver membrane from the back of each rack of ribs. In a small bowl, mix together the brown sugar, paprika, garlic powder, onion powder, salt, pepper, and cayenne. Rub the spice mixture generously over both sides of the ribs.
02 -
Wrap each rack tightly in aluminum foil and place on a baking sheet. Bake for 2 1/2 hours, until tender but still holding together.
03 -
Preheat a grill to medium-high or set oven broiler to high. Unwrap the ribs and brush generously with BBQ sauce. Grill or broil for 5–7 minutes per side, basting with additional sauce, until caramelized and slightly charred.
04 -
Let rest for 5–10 minutes before slicing between the bones. Serve hot with extra sauce on the side.