Add all of the rub ingredients into a bowl and stir well.
Prepare your ribs by removing the membrane and silver skin if your butcher hasn’t done this for you. You can see a “how to” video here: Rub liberally with spice mix and wrap it tightly in glad wrap. Put it in the fridge for 1 hour. Then remove glad wrap.
Put prepared rack in your smoker, unwrapped, bone side down at 250°F or 121°C for 3 hours.
Put your rack in to a small Alfoil tray and add your beef stock around the rack to be around 3-4mm deep. If you have it put a piece of wax paper on top of the ribs to preserve bark. Wrap tightly with alfoil and punch a few holes to let steam escape.
Cook for another 3-4 hours or until an internal temp of 205-210°F or 96-98°C is reached.
Rest your ribs, still wrapped, in an esky or cold oven wrapped with a towel for 1-2 hours.
Prepare Smoky BBQ Sauce by putting all ingredients into the mixer bowl and cooking for 5 min/steaming temp/speed 3/MC on. Bring to a gentle boil on the stove top if you don't have a thermal cooker.
Slice ribs between the bone and cover with sauce.