Rub the ribs on all sides with half of the dry ingredients that have been combined.
Sear the ribs on the grill at 400 degrees for 15-20 minutes total, on both sides.
Remove from the grill and cool slightly.
Rub the ribs with the remaining rib rub.
Place in a roaster or large pan that has 1-2 inches of water added to the bottom of the pan.
Cook at 375 degrees, covered tightly, for two hours.
Remove from the oven and brush the ribs with the wet barbecue sauce.
If the water is gone in the bottom of the pan, add more to make 1-2 inches.
Return the ribs to the oven and cook, uncovered, at 350 degrees for 15-20 minutes.