Spray the slow cooker with cooking spray. Layer the bottom of the slow cooker with the fresh or frozen pineapple.
Rub those ribs! Get all of that African Spice Rub on there!
Stand ribs up along the walls of the slow cooker, and cook on high 4 hours, or on low for 8.
Pull out the ribs and blend the pineapple sauce at the bottom, until the desired consistency.
If you like extra crunch, or if you're serving after the ribs cool, place under the broiler with the pineapple salsa piled on top. Should take just about 5 minutes or so...