Preheat the Traeger grill to 225 degrees f with lid closed for 15 minutes.
While the grill is preheating, prepare the turkey and season inside and out generously with kosher or sea salt.
Place butter under the turkey skin. The butter will be used to baste the turkey periodically throughout the cooking process. And it makes an excellent gravy too!
Place the turkey inside of the roasting pan and fill with your favorite stuffing.
Add the turkey to the Traeger and smoke at 225 degrees for 2 1/2 to 3 hours.
Change the temperature to 350 degrees and cook for 3 1/2 to 4 hours. Baste the turkey with the butter and drippings periodically.
The turkey will be finished when the internal temperature of the turkey breast reaches 165 degrees f and the internal temperature is 175℉ in the thigh next to the bone.
Remove from the grill and allow to rest for about 30 minutes before serving.