Using a small knife, remove the membrane from the underside of the ribs.
Combine the spices in a small bowl and liberally rub over both sides of the ribs. Wrap in plastic wrap and marinate in the refrigerator for at least 2 hours.
Preheat the oven to 225°F. Unwrap the ribs and place them on a foil-lined baking sheet, meat side up. Bake for 3-3½ hours, until the ribs are well browned and extremely tender.