Preheat the oven to 135C/275F. Line a large baking tray with tin foil.
Mix the rub ingredients together.
Rub the mayonnaise all over the ribs. Season with the rub on both sides.
Place the ribs on a baking rack, rib side up. Cover the rack with tin foil and bake for 2 ½ hours.
While the ribs are baking, whisk together the marinade.
Once the ribs are cooked, remove them from the oven and discard the tin foil. Generously brush both sides with the marinade.
Turn the broiler setting on and broil the ribs for 4 minutes.
Notes
TO STORE: Cooked pork ribs can last up to 4 days in the fridge.TO FREEZE: Place the cooked and cooled ribs in a shallow container and store them in the freezer for up to 6 months. TO REHEAT: To reheat leftover ribs, place them in an oven-safe pan and cover them with foil. Reheat the ribs at 250 degrees until heated through.