Pulse the aromatics until smooth, chill the mixture 30 minutes to 3 days, then preheat the oven to 300°F. Season ribs, smear half the scallion mixture, wrap in foil and bake about 1½ hours. Unwrap, spread the rest, bake another 1½ hours uncovered until tender and crusted, then rest loosely for 30 minutes. Recipe serves eight; active time ~20 minutes; total ~4 hr 20 min.
Cedric recommends cutting back on habaneros if you prefer less heat, and resting the ribs so juices redistribute—perfect for summer cookouts, long weekends or any music-filled gathering.