Cut spare ribs in small enough slabs to fit in pressure cooker. Cover all sides of meat with seasoning rub. Place meat in pressure cooker.Cover and lock lid in place. Select High Pressure and set timer for 45 minutes. When audible beep sounds, allow pressure to release naturally. Turn off. When it is safe to open pressure cooker open and remove ribs and place on plate and allow to dry a bit.

Heat grill to high heat. Place ribs on grill and brush with bbq sauce on both sides. Grill until ribs are crispy and browned. This should only take about 5-7 minutes on each side on high heat. If ribs are burning lower heat and grill until desired crispness.