1Preheat oven to 375°F. Mix sugar, cocoa powder, chipotle chile pepper, garlic powder, sea salt and cinnamon in small bowl. Reserve 1 tablespoon spice mixture for basting sauce. Rub remaining spice mixture on ribs until well coated. Place ribs in single layer on foil-lined roasting pan. Cover with foil.
2Bake 1 hour or until meat starts to pull away from bones. Meanwhile for the basting sauce, mix apple juice, tomato paste and reserved 1 tablespoon spice mixture in small bowl.
3Grill ribs over medium heat 2 to 3 minutes per side or until evenly browned, brushing with basting sauce.