If a dry jerk seasoning or rub is available, use it to save a few minutes. This is a mild jerk seasoning rub; an authentic jerk rub will be spicier. You can substitute 1/4 teaspoon ground cinnamon, 1/8 teaspoon ground ginger and 1/8 teaspoon ground nutmeg for the pumpkin pie spice.
Small boneless skinless chicken breasts can be substituted for the thighs, if you prefer. Or use bone-in thighs.