Step 1: Prepare the Turkey

1. Thaw the Turkey (if frozen): If using a frozen turkey, ensure it is completely thawed. This can take several days in the refrigerator, depending on the size of the bird. A general rule is 24 hours of thawing time for every 5 pounds of turkey. You can also quick-thaw in cold water, changing the water every 30 minutes, but this requires more attention. Never thaw a turkey at room temperature as this can promote bacterial growth.
2. Preheat Oven and Prepare Roasting Pan: Preheat your oven to 450°F (232°C). Position an oven rack in the lower third of the oven to ensure even cooking and prevent the breast from browning too quickly. Prepare a large roasting pan with a roasting rack. If you don’t have a rack, you can use roughly chopped vegetables like carrots, celery, and onions to elevate the turkey.
3. Remove Giblets and Neck: Remove the turkey from its packaging and take out the giblets and neck from the cavity. These are often found in a small bag inside the turkey. You can use the neck and giblets to make gravy or stock if desired.
4. Pat the Turkey Dry: This is a crucial step for achieving crispy skin. Use paper towels to thoroughly pat the turkey dry, both inside and out. Dry skin will allow the butter and heat to better crisp the skin during roasting.

Step 2: Prepare the Garlic Herb Butter

1. Prepare the Garlic: Slice off the top quarter of the garlic head to expose the cloves. Drizzle the exposed garlic with about 1 tablespoon of olive oil and wrap the entire head loosely in aluminum foil. Roasting the garlic mellows its flavor and makes it incredibly spreadable and aromatic.
2. Roast the Garlic: Place the foil-wrapped garlic head in the preheated oven alongside the turkey (or in a separate pan if space is limited) and roast for about 30-40 minutes, or until the cloves are soft and fragrant. The garlic can be roasted while you prepare the turkey, or even ahead of time.
3. Prepare the Herb Mixture: While the garlic is roasting, in a medium bowl, combine the softened butter, chopped fresh rosemary, thyme, and sage. Squeeze the juice of half a lemon into the butter mixture and season generously with salt and freshly ground black pepper. Mix everything together until well combined and the herbs are evenly distributed throughout the butter.
4. Squeeze Roasted Garlic: Once the garlic is roasted and cooled slightly, squeeze the roasted garlic cloves out of their skins directly into the butter mixture. Mash the roasted garlic into the butter with a fork until it’s fully incorporated and the butter is fragrant with garlic.

Step 3: Butter and Season the Turkey

1. Loosen the Skin (Optional but Recommended): Gently loosen the skin of the turkey breast from the meat, starting at the neck cavity. Carefully slide your fingers under the skin, separating it from the breast meat. Be careful not to tear the skin. Loosening the skin creates pockets for the herb butter to be placed directly onto the breast meat, maximizing flavor and juiciness. You can also loosen the skin on the thighs and drumsticks if you wish.
2. Stuff Butter Under the Skin: Using your fingers, generously spread about two-thirds of the garlic herb butter mixture under the loosened skin of the turkey breast, thighs, and drumsticks, ensuring the butter is evenly distributed and in contact with the meat.
3. Rub Remaining Butter on the Skin: Rub the remaining one-third of the garlic herb butter all over the outside of the turkey skin. This will create a flavorful and crispy crust.
4. Season Inside and Out: Season the inside cavity of the turkey generously with salt and pepper. Also, season the outside skin of the turkey with additional salt and pepper to ensure well-seasoned and flavorful skin.
5. Stuff the Cavity (Optional): For extra flavor, you can stuff the turkey cavity with quartered lemon wedges (from the remaining half lemon), any leftover herb sprigs, and the reserved roasted garlic skins (optional). Stuffing the cavity adds subtle aromatic notes to the turkey from the inside out. Note: Stuffing the cavity will increase the cooking time and requires careful monitoring to ensure the stuffing reaches a safe internal temperature of 165°F (74°C).

Step 4: Roast the Turkey

1. Place Turkey in Roasting Pan: Place the prepared turkey breast-side up on the roasting rack in the roasting pan.
2. Add Water or Broth (Optional): Pour about 1 cup of water or chicken broth into the bottom of the roasting pan. This helps to create steam, keeping the turkey moist, and prevents the pan drippings from burning. Be sure to monitor the liquid level during roasting and add more if it evaporates completely.
3. Initial High Heat Roast: Roast the turkey in the preheated 450°F (232°C) oven for 30 minutes. This initial high heat helps to crisp the skin quickly.
4. Reduce Oven Temperature and Continue Roasting: Reduce the oven temperature to 325°F (163°C). Continue roasting for approximately 2.5 to 3.5 hours, or until a meat thermometer inserted into the thickest part of the thigh (without touching the bone) registers 165°F (74°C). The exact roasting time will depend on the size of your turkey and your oven’s temperature accuracy.
5. Baste (Optional but Recommended): Basting the turkey every 30-45 minutes with the pan drippings helps to keep it moist and enhances the browning. Use a bulb baster to draw up the pan drippings and drizzle them over the turkey skin.
6. Check for Doneness: Start checking the turkey for doneness around the 2-hour mark. Use a meat thermometer to ensure accuracy. The turkey is done when the thigh meat reaches 165°F (74°C) and the juices run clear when pierced with a fork. The breast meat should also reach a minimum of 165°F (74°C), but it’s preferable if it reaches around 170°F (77°C) for optimal tenderness.
7. Tent with Foil if Browning Too Quickly: If the turkey skin is browning too quickly before the internal temperature is reached, loosely tent the turkey with aluminum foil to prevent burning.

Step 5: Rest and Carve

1. Rest the Turkey: Once the turkey is cooked through, remove it from the oven and transfer it to a large cutting board. Tent it loosely with aluminum foil and let it rest for at least 20-30 minutes before carving. Resting is crucial as it allows the juices to redistribute throughout the meat, resulting in a more tender and juicy turkey.
2. Make Gravy (Optional): While the turkey is resting, you can make gravy using the pan drippings. Skim off excess fat from the pan drippings in the roasting pan. Place the roasting pan on the stovetop over medium heat. Whisk in the flour (or cornstarch slurry – cornstarch mixed with cold water) into the pan drippings and cook for 1-2 minutes to cook out the raw flour taste. Gradually whisk in the chicken broth, scraping up any browned bits from the bottom of the pan. Bring to a simmer and cook, stirring occasionally, until the gravy thickens to your desired consistency. Season with salt and pepper to taste. Strain the gravy through a fine-mesh sieve for a smoother texture, if desired.
3. Carve and Serve: After the turkey has rested, carve it and serve immediately.