1. Preheat the oven to 300° F.
2. Combine spices in a bowl. Rub onto ribs.
3. Place ribs on the Grill. Cook in the oven for 2 hours.
4. Make BBQ sauce: mix ketchup, cola, and molasses in a saucepan on medium heat. Simmer for 20 minutes.
5. Remove ribs from the oven & baste with BBQ sauce. Return to the oven for an additional 30 minutes.
6. Baste ribs with BBQ sauce one last time before serving.