Preheat the Traeger to 225°F.
Remove the giblet and gravy package from inside the cavity of the turkey. Remove or discard any plastic or metal cages or pop-up thermometers. Pat the turkey dry with some towels.
Place the turkey breast side down on a cutting board. With some heavy-duty poultry shears or a shape knife, cut down both sides of the backbone.
Once the backbone is removed, flip the turkey breast side up. With both hands, press down on the turkey breast until you hear the breastbone crack. You will also feel the turkey flatten once the breastbone breaks.
Brush the entire surface of the turkey with olive oil and season it with salt and pepper. Use the Spiceology Turkey Rub or your favorite BBQ rub to coat the entire surface of the turkey. Optional: place the seasoned turkey in the fridge overnight and allow the dry brine to work its magic.
Place the turkey in the middle of the lower grill grates of your Traeger, breast side up. Be sure that the drumsticks and wings are spread out and the turkey is laying flat on the grill grates.
Tuck and fold the wing tips under the body of the turkey toward its back to help prevent them from burning.
Smoke the turkey until the internal temperature reaches 110°F. Increase the temperature of the Traeger to 400°F and smoke it until the internal temperature reaches 160°F-165°F (see notes).
Remove the turkey from the Traeger and place it on a butcher board. Drape a sheet of aluminum foil over the turkey and allow it to rest for 15-20 minutes before carving.