
Preheat the grill. Set your favorite grill to 375 degrees F using two-zone heat.
Season the chicken. Drizzle chicken with avocado oil and season on all sides with the poultry seasoning. I don't recommend rubbing in your seasoning because it will just pull back on the skin and your seasoning will clump together.
Prepare the chicken. Use butcher twine to tie the legs of the chicken together, then tuck the wing tips behind the shoulder joint.
Grill the chicken over indirect heat. Place your chicken directly on the grill grates on the indirect heat side of your smoker. Close the lid and grill for 1 hour. Open the lid, turn the chicken a half-turn for even cooking.
Drizzle with oil and continue. Drizzle on a little additional avocado oil and close the lid. Cook for an additional 45 minutes to 1 hour or until the internal temperature in the thickest part of the breasts reads 160 degrees F with an instant-read meat thermometer. (170-175 degrees F for thighs.) Optionally, during the last 10 minutes of grilling, baste the chicken with your favorite BBQ sauce.
Rest, slice, and serve. Once the chicken has reached the correct internal temperature, transfer to a cutting board to rest for 10 minutes. After that, slice, serve, and enjoy!