Place all dry rub ingredients in a food processor and pulse 10 times. Dry rub will keep in a closed container for three months.
Remove the tough membrane from the back of the ribs.
Liberally sprinkle dry rub on both sides of the rib racks. Cover with plastic wrap (not foil) and refrigerate for 6 hours.
Setup the smoker for indirect heat at 250°F. Soak ½ - 1 cup wood chips (e.g apple, cherry) in water for 30 minutes. Add the wood chips to the smoker. Place the ribs in the smoker, and cook for 3 hours.
Remove the ribs and wrap them in a foil tent, bone side down, sealed at one end. Pour the braising liquid in the other end and seal. Return the ribs to the smoker and cook for another two hours. The ribs are done when the meat has pulled back a bit from the end of the bone and the bone can be easily twisted and removed.
Remove the ribs and setup the grill for direct heat. Brush your favorite BBQ sauce on both sides of the ribs and place them on the grill. Turn once. Cook only until the sauce thickens and caramelizes a bit. Do not burn the sauce.