Place the turkey in a shallow roasting pan.
Pour beer & teriyaki sauce into the bottom of the pan.
Rub softened butter all over the turkey.
Liberally coat the buttered turkey with seasoning & rub in.
Cut an apple in half & place inside the turkey.
Preheat the grille to 225 degrees.
Once heated, place the prepared turkey on the grill, uncovered at 225 degrees.
Cook until internal breast temperature reaches 110 degrees.
Turn the grille up to 350 degrees & continue to cook the turkey until the internal temperature reaches 160 degrees.
This should take approx 5 hours, depending on the size of your turkey & the ambient temperature around your grille.
Once it has reached 160 degrees, remove the turkey & let sit for 15 minutes before carving.