2. Prepare the Turkey
Rinse the turkey under cold water, removing the giblets and neck from the cavity.
Pat the turkey dry with paper towels.
3. Season the Turkey
Rub the turkey with softened butter and olive oil. This helps to keep the skin crispy and golden.
Generously season the turkey inside and out with salt, pepper, garlic powder, onion powder, thyme, and rosemary.
4. Stuff the Turkey Cavity
Fill the cavity with quartered onion, smashed garlic cloves, chopped carrots, and celery. These aromatics enhance the flavor of the turkey and drippings.
5. Prepare the Oven Bag
Place 1 tablespoon of flour in the oven bag and shake it around. This prevents the bag from sticking to the turkey and ensures even cooking.
6. Place the Turkey in the Bag
Carefully transfer the seasoned turkey into the floured oven bag.
Arrange the bag in a large roasting pan, ensuring the turkey is breast-side up.
7. Seal and Vent the Bag
Secure the bag with its provided tie or a twist tie. Leave a small amount of space around the turkey for steam to circulate.