Make the brine by mixing salt and water together. Cover the chicken wings with the brine in a bowl. Wrap and store in the refrigerator overnight or for at least 2 hours.
Drain the brine and discard. Dry off the wings briefly with paper towels.
Add 1 tsp of baking powder per lb of wings and mix in a bowl.
Add the dry rub and mix well with your hands to coat evenly. Save about 1-2 tbsp of dry rub to finish the wings later.
Spray a resting rack with vegetable oil (or brush it). Line the seasoned wings on a resting rack with a tray underneath. Dry in the fridge for 1-2 hours.
Preheat your Traeger to 300°F. Optional: fill your pellet tube smoker about 1/3 with your favourite pellets. Lite it when the Traeger is ready.Once the Traeger is ready, place the tray of wings in the middle of the pit. Close the lid and smoke for 45 minutes.
Once an hour has passed, take the wings off the pit and crank the Traeger up to its max temp of 500°F.
Finish the wings for 10 minutes on high heat or until the edges go crispy.
Immediately toss the wings with the softened butter and extra dry rub. Coat well and serve right away!
Notes
If you're in a hurry you can skip the brining and drying process but the wings will be less good. You can also finish the wings on a charcoal or gas grill instead of waiting for the Traeger to heat up to max temperature. Just be careful as they'll burn easily!