Preheat your oven to 275°F (135°C).
Remove the membrane from the back of the ribs for better seasoning penetration.
Brush both sides of the ribs with olive oil.
In a small bowl, mix together the salt, black pepper, paprika, garlic powder, onion powder, and cumin.
Rub the spice mix generously over the ribs, ensuring an even coating.
Place the ribs in a baking dish, and pour water and apple cider vinegar into the bottom of the dish around the ribs.
Cover the baking dish with aluminum foil, sealing the edges tightly to lock in moisture.
Bake in the preheated oven for 2.5 – 3 hours, or until the meat is tender and almost falling off the bone.
While ribs are baking, combine the sugar-free barbecue sauce and Worcestershire sauce in a separate bowl for the glaze.
Once the ribs are cooked, remove the foil and brush the glaze onto the ribs.
Increase the oven temperature to 450°F (232°C) and return the ribs to the oven, uncovered.
Bake for an additional 10-15 minutes, until the glaze is caramelized and sticky.
Remove the ribs from the oven and let them rest for a few minutes before slicing and serving.