Remove the 1 只完整火鸡 12–14 lb，完全解冻，去除内脏和颈部 from the refrigerator 1 hour before roasting to take the chill off — this helps it cook more evenly. Pat the 1 只完整火鸡 12–14 lb，完全解冻，去除内脏和颈部 completely dry inside and out with paper towels. Dry skin is the key to getting it golden and crispy.

Preheat your oven to 325°F. Position a rack in the lowest third of the oven.

In a small mixing bowl, combine the softened 无盐黄油 软化至室温, minced 瓣大蒜 切碎, 2 tbsp 新鲜迷迭香 细切, 6 支新鲜百里香, 2 tbsp 新鲜鼠尾草 细切, 1 tbsp 新鲜平叶欧芹 细切, 1 tsp 柠檬皮 (if using), 1 tbsp 粗盐, and 1 ½ tsp 黑胡椒 新磨. Mix together with a fork or spatula until fully combined and smooth.

Rub the outside of the 只完整火鸡 12–14 lb，完全解冻，去除内脏和颈部 all over with 2 tbsp 橄榄油, then season generously with 1 tbsp 粗盐 and 1 ½ tsp 黑胡椒 新磨, including the underside and inside the cavity.

Gently loosen the skin over the 1 只完整火鸡 12–14 lb，完全解冻，去除内脏和颈部 breast and thighs by sliding your fingers carefully underneath, being careful not to tear it. Push about two-thirds of the herb 8 tbsp 无盐黄油 软化至室温 under the skin, pressing from the outside to spread it evenly over the breast and thigh meat. Rub the remaining herb 8 tbsp 无盐黄油 软化至室温 all over the outside of the skin.

Stuff the cavity loosely with the aromatics: quartered 1 个洋葱 四等分, halved 1 个柠檬 切半, halved 4 瓣大蒜 切碎, 4 根芹菜 粗切, 2 tbsp 新鲜迷迭香 细切 sprigs, and 6 支新鲜百里香 sprigs. Do not pack tightly — the aromatics are for flavor, not stuffing. Tie the legs together with kitchen twine and tuck the wing tips under the body.

Scatter the chopped 根胡萝卜 粗切, 4 根芹菜 粗切, and 1 个洋葱 四等分 in the bottom of a large roasting pan. Place a roasting rack on top of the vegetables. Set the 1 只完整火鸡 12–14 lb，完全解冻，去除内脏和颈部 breast-side UP on the rack. Pour the 2 cups 鸡汤或火鸡汤 低钠 into the bottom of the pan — this keeps the drippings from burning and creates the base for a great gravy.

Roast the 1 只完整火鸡 12–14 lb，完全解冻，去除内脏和颈部 at 325°F. As a general guide, a 12–14 lb 只完整火鸡 12–14 lb，完全解冻，去除内脏和颈部 takes about 3 to 3.5 hours. After the first 2 hours, check the 1 只完整火鸡 12–14 lb，完全解冻，去除内脏和颈部. If the skin is already deep golden, tent it loosely with aluminum foil to prevent over-browning, but leave it uncovered for the last 30 minutes to re-crisp.

Baste the 1 只完整火鸡 12–14 lb，完全解冻，去除内脏和颈部 every 45–60 minutes by spooning the pan drippings over the skin. This adds flavor and promotes even browning. Do not baste more frequently than this, as opening the oven lowers the temperature.

The 1 只完整火鸡 12–14 lb，完全解冻，去除内脏和颈部 is done when a meat thermometer inserted into the thickest part of the thigh (without touching bone) reads 165°F. The breast should also read at least 160°F. Do not rely on the pop-up timer alone — always use an instant-read meat thermometer for accuracy.

Remove the 1 只完整火鸡 12–14 lb，完全解冻，去除内脏和颈部 from the oven and transfer it to a cutting board. Tent loosely with aluminum foil and let it rest for at least 30 minutes before carving — this is non-negotiable. Resting allows the juices to redistribute throughout the meat. Carve and serve immediately.