• 3 disposable aluminum pans, plus aluminum foil
Remove giblets and neck from the turkey; reserve for other uses, if desired. Rinse the turkey thoroughly with cold water and pat dry.
To make the brine: Place 8 cups water, maple syrup, bourbon, 1/2 cup salt and pickling spice in a large stock pot. Bring to a simmer and stir to dissolve the salt. Place turkey in a brining bag or large plastic container with a lid and add additional water to make sure the bird is completely submerged. If using brining bag, close the bag tightly and consider putting it in a second bag to make sure it doesn't leak. Refrigerate for 24 hours but no more than 36 hours or the brine will make the meat mushy.
To grill the turkey: Oil the grill racks. Preheat gas grill using all the burners set on high and with the lid closed for 10 to 12 minutes. When the grill is hot, turn off the center or back burner and adjust the heat to medium-low. (Or build a fire for indirect cooking in a charcoal grill.)
Remove turkey from the brine, discarding brine. Pat dry inside and out and set it on a baking sheet. Stuff the cavity with the carrot, celery and onion. Slice the lemon in half and squeeze the juice over the turkey, then place the rinds in the cavity. Season the turkey with the remaining 1 tablespoon salt and pepper, rubbing it into the skin. Fold wings under and tie the legs together with kitchen twine.