Preheat oven to 160°C/320°F (all oven types).
Mix Rub in a small bowl large, enough to fit one rib.
Press beef ribs into the rub, coating all sides. Shake off excess.
Mix Barbecue Sauce ingredients, except water, in a baking pan. Then mix in water.
Place ribs in sauce, turning to coat. Arrange meat side down in the sauce, bone side exposed (sauce won't cover completely, that's ok).
Cover tightly with foil or lid, bake 3 1/2 hours.
Remove from oven, remove foil. Turn ribs (some may have fall over, that's ok, just turn them). Spoon over sauce.
Bake 30 minutes uncovered, spooning over sauce again halfway through, until surface is caramelised and sticky. Check to ensure ribs are tender - pry a bit apart using two forks. (If not, cover and return to oven, but after 4 hrs they certainly should be!)
Remove ribs onto serving plate (use a spoon as meat will barely be attached to bone, if at all). Mix sauce to bring together (Note 3 on adjustments). Serve with ribs!