1. Mix paprika, salt, black pepper, garlic powder, and onion powder in a small bowl.
2. Rub the spice mix all over the ribs.
3. Place the ribs in the slow cooker, meat-side up.
4. Pour BBQ sauce over the ribs.
5. Cover and cook on low for 8 hours.
6. Preheat your oven to 375°F (190°C).
7. Transfer the ribs to a baking sheet lined with aluminum foil.
8. Brush more BBQ sauce on the ribs.
9. Bake for 15 minutes or until the sauce is caramelized.
10. Let the ribs rest for a few minutes before serving.