Make several slits through membrane on the backside of the ribs. Cut slab in half if needed to fit in 13x9-in. baking pan.
Season ribs front and back with salt & pepper or you choice of rub ingredients.
Place slab(s) in baking pan and cover tightly with foil. Bake at 340 degrees for 1 1/2 hours or longer until done. Remove foil; Add BBQ sauce and bake uncovered an additional 20-30 minutes. Let set a few minutes before slicing. Enjoy! NOTE" May place cooked ribs on outdoor grill for a few minutes, if desired.