Prepare the Spice Rub: Mix all your spices together in a bowl to create your BBQ rub.
Season the Ribs: Apply the spice mixture generously to the ribs. Rub and massage thoroughly until the meat is evenly covered with seasoning.
Place in Slow Cooker: Transfer the seasoned ribs to your crockpot.
Add the Special Ingredient: Pour Coca-Cola into the slow cooker. Pour it along the sides rather than directly on the ribs to avoid washing off the seasonings. Alternatives include Dr. Pepper or Root Beer.
Optional: Sprinkle some brown sugar over the ribs to help tenderize the meat further.
Set to Cook: Cover and set the slow cooker to low for 6 hours.
Leave Undisturbed: Do not open the lid for at least 1 to 1½ hours to maintain proper cooking temperature.
Finish Under the Broiler: Once the slow cooking is complete, transfer the ribs to a baking sheet, brush with BBQ sauce, and place under the broiler for 5-10 minutes until caramelized.
Serve: Remove from the broiler and enjoy your tender, flavorful slow cooker barbecue ribs!