- 1 12-pound turkey, thawed if frozen
- 12 sprigs fresh thyme
- 2 medium onions, cut into wedges
- 2 tablespoons unsalted butter, at room temperature
- kosher salt
- 2 carrots, cut into 2-inch pieces
- 2 stalks celery, cut into 2-inch pieces
- 1 cup low-sodium chicken broth (if needed)
- Heat oven to 375° F. Working on a baking sheet, remove the giblets and neck from the cavity. Reserve the neck and discard the giblets. Using a paper towel, pat the turkey dry of juices. Stuff with the thyme and half the onions.
- Tie the legs together with kitchen twine. Tuck the wing tips underneath the body (this will prevent them from burning).
- Rub the turkey all over with the butter and season with 1 teaspoon salt, making sure to reach the crevices of the legs and wings. Be careful not to tear the delicate skin.
- Place the turkey neck, carrots, celery, and remaining onions in a large flameproof roasting pan. Put a roasting rack in the pan and place the turkey on top of it.
- Roast the turkey, basting every 30 minutes with the pan juices. (Basting will not make the meat moister, but it will produce an evenly browned skin.)
- If the turkey begins to darken and there is still a substantial amount of cooking time left, tent it loosely with foil. If the vegetables begin to scorch, add some broth to the pan.
- Continue roasting until the thickest part of a thigh registers 165° F, 2½ to 3 hours. Tilt the turkey to empty the juices into the pan. Transfer the turkey to a carving board, tent with foil, and let rest for at least 25 minutes. Reserve the pan and its contents for Basic Gravy.