3 fresh Scotch bonnet or habanero chiles
6 scallions, coarsely chopped
1/4 pound shallots (3 meduim), quartered
3 garlic cloves, smashed
1 (1-inch) piece fresh ginger, peeled and chopped
3 tablespoons fresh thyme leaves
2 teaspoons ground allspice
1 1/2 teaspoons black pepper
1 1/2 teaspoons salt
1 teaspoon ground cinnamon
1/2 teaspoon freshly grated nutmeg
1/2 teaspoon ground cloves
1/4 cup vegetable oil
Discard stems, seeds, and ribs from 2 chiles and coarsely chop. Coarsely chop remaining chile including seeds (for a less spicy dish, seed half of chile before chopping).Blend chiles with remaining ingredients except chicken in a food processor until a paste forms. Cut several 1-inch-long slits in each piece of chicken, then rub paste all over chicken, rubbing it into slits. Marinate, covered and chilled, at least 2 hours,
Preheat all burners on high (until thermostat registers 500°F). Turn off 1 burner and reduce heat on other burner (or burners) to medium. (Thermostat should register 350 to 375°F.) Grill chicken, skin sides down first, on portion of lightly oiled grill rack over unlit burner, covered, turning occasionally, until cooked through, 20 to 30 minutes.