Preheat your grill to a medium-high heat.
In a bowl, combine the chili powder, ground cinnamon, cocoa powder, olive oil, balsamic vinegar, honey, if using, and season with salt and pepper to taste. Mix until well blended.
1 tbsp. chili powder, 1 tbsp. ground cinnamon, 1 tbsp. honey, 1 tsp. unsweetened cocoa powder, 3 tbsp. olive oil, 1 tbsp. balsamic vinegar, Sea salt and freshly ground black pepper
Brush the chicken pieces with the sauce.
3½ to 4 lb. bone-in chicken parts
Place the chicken on grill and cook for about 30 min (or until the chicken is cooked the exact time will vary depending on what chicken parts you’re using).
Combine all the ingredients for the lime butter in a bowl .
¼ cup chopped fresh cilantro, ½ cup ghee, 1 serrano chile, 2 tbsp. shallots, 1 tbsp. fresh lime juice, Freshly ground black pepper
Drizzle the lime butter over the chicken before serving.