Place the wings in a large bowl or resealable container.
Combine the baking powder and Cajun seasoning.
Sprinkle half of the seasoning mix over the wings. Using your hands, toss the wings to coat.
Add the remaining seasoning and repeat.
Transfer the wings to a wire rack over a baking sheet. Place in the fridge 12 hours or overnight to dry out the skin.
Load up the charcoal chimney about 3/4ths of the way with charcoal and light. Once the charcoal is all lit and lightly covered in ash, dump the coals into the grill along one side. This will create two zones: a hot direct heat zone over the coals and a cooler indirect heat zone for the wings.
Add the charcoal grate and close the grill. Open the top and bottoms vents all the way. Let the grill preheat for 5.
Place the wings on the indirect heat side of the grill. Close the lid and turn so that the vent is above the wings.
Cook until the wings are lightly browned and crispy, usually 45 minutes. While the wings are cooking make the wing sauce.
Transfer the wings to a large bowl. Pour as much sauce as desired over the wings and toss to coat. Serve hot. Click here for our guide on how to sauce your wings.