Mix all rub ingredients in a small bowl; set aside.
Prepare ribs by removing the sliver skin (membranfrom the back of the ribs.
Massage rub over front and back of the rib slabs. Place in a large zipper freezer bag and refrigerate overnight.
Mix all glaze ingredients in a small bowl and set aside.
Prepare gas grill for indirect cooking--you will cook over the unlit side--by heating the interior of the grill to approximately 325 degrees Place ribs, bone side down on unit side and roast for approximately 1 1/2 to 2 hours.
Brush both sides of the ribs with glaze and move to the lit side of the grill. Grill each side until glaze bubbles.
Oven method: Proceed as above placing ribs on a roasting rack and baking at 325 degrees F for same amount of time. Remove from oven and set broiler to high. Brush with glaze and broil for about 5 minutes each side until glaze is bubbly.