Pre-heat the oven to 350 degrees F.
Clean turkey – remove neck and gizzards from the cavity.
Season the outside and cavity generously with salt and pepper.
Fill the cavity will extra vegetables.
Sprinkle the flour evenly over the bottom of the bag.
Place chopped onion, carrots and celery in the bottom on the bag.
Add turkey on top of the vegetables and pour in stock; close the bag using the provided tie.
Cut six slits, about ½ inch long, on the top of the bag. Stick the turkey in the oven and bake.
Remove from oven when the internal temperature (between the leg and breast) reaches 165 degrees F. Allow to rest for 15-30 minutes before carving.
ENJOY!!!