Place all the marinade ingredients—crushed garlic, allspice, Scotch bonnet peppers, thyme, lime juice, brown sugar, cinnamon, minced garlic, and oil—in a mixing bowl. Whisk until well combined, creating a fragrant, fiery marinade.
Score the chicken pieces with shallow cuts on the surface—this helps the marinade penetrate and flavors the meat evenly. Place the chicken in a large bowl or resealable bag.
Pour the marinade over the chicken, ensuring each piece is thoroughly coated. Cover or seal and refrigerate for at least 4 hours, preferably overnight, to develop deep flavor.
Preheat your grill or cast-iron skillet to medium-high heat—aim for about 200°C (390°F). This will give you a hot, smoky surface for perfect charring.
Remove the chicken from the marinade, letting excess drip off. Place the pieces onto the hot grill or skillet, skin side down if applicable.
Grill the chicken, turning occasionally with tongs, until deep golden brown and charred in spots—about 20-25 minutes. Use a meat thermometer to check for an internal temperature of 165°F (74°C).
Once cooked through, transfer the chicken to a platter and tent loosely with foil. Let it rest for 10 minutes to keep the juices locked in.
Serve the jerk chicken hot, with a smoky aroma and a beautifully caramelized, spicy exterior. Enjoy the tender, juicy meat with your favorite sides.