Combine the olive oil, lime juice, and soy sauce in a blender—these liquid ingredients form the foundation of your marinade and help distribute flavors evenly. Add the brown sugar and molasses, which provide sweetness and depth that balances the heat and acidity. These wet ingredients should be blended first to create a smooth base before adding the remaining components.
Add the scallions, fresh thyme, garlic, ginger, and scotch bonnet pepper (with seeds removed for moderate heat) to the blender with the liquid base from Step 1. These aromatics and the pepper are best blended while the liquid is already moving, which ensures they're finely incorporated and evenly distributed throughout the marinade. The heat from the pepper will be tempered by the moisture and oils, creating a complex flavor profile rather than a one-note burn.
Add the black pepper, kosher salt, allspice, nutmeg, and cinnamon to the blender and blend the entire mixture until completely smooth. I like to blend for a full minute or two to ensure all the spices are fully incorporated and the texture is uniform—this helps the marinade cling better to the chicken and ensures every bite has balanced seasoning. The final marinade should have no visible chunks and flow easily.
Place 3 pounds of chicken pieces in a large bowl or resealable bag and pour the jerk marinade from Step 3 over it, ensuring all pieces are well coated. Cover or seal and refrigerate for at least 1 hour, though 4 to 12 hours is ideal for deeper flavor development. I always rotate the chicken or massage the bag halfway through marinating to ensure even coverage on all sides.
Remove the marinated chicken from the refrigerator about 15 minutes before cooking to bring it closer to room temperature. Grill over medium-high heat (around 375–400°F) for 6–8 minutes per side depending on thickness, or bake at 400°F for 25–35 minutes until the internal temperature reaches 165°F. Let the chicken rest for 5 minutes after cooking to retain its juices, then serve hot with rice, beans, or fresh salads.