Thinly slice the dark green tips of 4 scallions; set aside. Place the remaining scallions in a roasting pan.
In a small bowl, combine the paprika, garlic powder, allspice, nutmeg, cayenne, salt, black pepper, oil, lime juice, and molasses. Spread the spice mixture over and under the chicken skin. Place the chicken on top of the scallions. Roast until the chicken is cooked through, about 45 minutes.
Meanwhile, prepare the corn muffin mix according to the package directions. Stir in the jalapeno and reserved sliced scallions and scrape the batter into a greased 8-inch-square pan. Place in oven and bake for 15 to 20 minutes.
Serve the chicken with the roasted scallions, corn bread, and lime wedges, if desired.
Tip: For a more intense flavor, rub the spice mixture over the chicken, then refrigerate for at least 8 hours before roasting.