Get Ready: Preheat your oven to a hot 425°F (220°C).
Mix Your Rub: In a small bowl or shaker, combine all the dry rub spices (salt, chili powder, paprika, garlic powder, onion powder, oregano, black pepper, and chipotle/cayenne powder) until well mixed. This blend is full of flavor!
Season the Ribs: Generously rub the spice mixture all over both sides of the pork spare ribs. Make sure they're fully coated for maximum taste.
Bake Until Tender: Place the seasoned ribs in a large roasting pan (you might need to cut them in half to fit). Pour 1 cup of water into the pan, then cover it very tightly with aluminum foil. Bake for about 1 hour and 30 minutes, or until the meat is incredibly tender and nearly falling off the bone. Keep an eye on the water level; add a little more if it gets too low to prevent burning.
Finish with a Sear: Once tender, carefully remove the ribs from the oven. Preheat your grill or broiler. Carefully transfer the ribs and cook for about 4 minutes per side, just until they're beautifully browned and slightly crispy. Watch them closely to prevent burning!
Serve & Enjoy: If you like, brush your cooked ribs with some sugar-free BBQ sauce before or after grilling. These delicious ribs are now ready to be savored!