In a small bowl combine the light brown sugar, chipotle ground pepper, smoked paprika, ground mustard, ground cumin, and salt. Place the chicken wings into a large freezer bag and pour the seasoning mix with them. Seal and 'squish' the contents around to coat the chicken. Refrigerate for at least 30 minutes to an hour to season the chicken wings (the flavor is better the longer you can let the meat sit in the dry rub).
Remove meat from the refrigerator/freezer bag and place onto your smoker racks either directly or lined with aluminum foil. Our wings smoked to a crispy deliciousness at 250 degrees F (121 degrees C) in only 1 1/2 hours, but they can take up to 2 hours. Remove from the smoker and serve immediately.
Cooking on the Grill or in the Oven
Cook chicken wings on the preheated grill for 25-30 minutes, or until no longer pink.
Cook on a parchment paper lined or greased baking sheet at 400 degrees F (205 degrees C) for 45-50 minutes until the skin is nice and crispy, and the wings are cooked through.