Rub ribs with seasoning. Marinate at least 4 hours or overnight in refrigerator.

Preheat oven to 300 F. Combine hot sauce, oil and brown sugar; brush over both rib racks. Line baking sheet with double layer of aluminum foil with enough overhang to wrap foil around ribs. Lay ribs, bone side down, on foil-lined baking sheet. Wrap foil around ribs and seal. Place on baking sheet.

Fill large baking dish or roasting pan with 2 inches of boiling water. Place on lower oven rack to keep ribs moist as they bake. Place ribs on middle oven rack. Bake 2 1/2-3 hours, or until meat is tender and just starting to fall off bone.

Preheat broiler. Unwrap ribs and place on foil-lined baking sheet. Broil 4-6 minutes on middle oven rack, or until lightly charred and caramelized. Serve with lime wedges and additional hot sauce. Serve with mashed potatoes or steamed white rice, if desired.