The Art of Roasting a 20-Pound Turkey: A Step-by-Step Guide to Thanksgiving Perfection

To some, turkey is a succulent holiday centerpiece. To others, it’s a vehicle for gravy. However, if you know how to cook a turkey so that it reaches the perfect internal temperature without overcooking, then it can be great—delicious even. Whether you’re a seasoned Thanksgiving host feeling overwhelmed by the season’s newest fad (is it turkey breast only, confit, or spatchcocked this year? We can’t keep up!) or a holiday host novice cooking a whole turkey for the first time, you can depend on this infallible guideline: If you just stick to the basics, you won’t need a special recipe. Ahead you’ll find everything you need to know, including step-by-step instructions, to make the perfect turkey.

In a hurry? Scroll down to get right to our table of turkey cook times. Or scroll even further for our guide to cooking a turkey that’s still frozen solid.

Ah, Thanksgiving. A time for family, friends, and, of course, the centerpiece of the feast: the perfectly roasted turkey. But for those of us who aren’t culinary wizards, the prospect of cooking a 20-pound bird can be daunting. Fear not, fellow foodies! This guide will equip you with the knowledge and confidence to roast a turkey that will have your guests raving and begging for seconds.

Preparation is Key: Gathering Your Tools and Ingredients

Before you embark on your culinary adventure, ensure you have the necessary tools and ingredients at your disposal Here’s what you’ll need:

  • A 20-pound turkey: Choose a fresh or thawed turkey, ensuring it’s completely defrosted before cooking.
  • A large roasting pan: Opt for a pan with a rack to elevate the turkey and allow for even cooking.
  • Aromatics: Stock up on onions, carrots, celery, and fresh herbs like sage and thyme to add flavor and moisture.
  • Unsalted butter: Butter will help keep the turkey moist and create a golden-brown, crispy skin.
  • Kosher salt and freshly ground black pepper: Seasoning is essential for bringing out the best in your turkey.
  • Baker’s twine: This will help secure the legs for a more presentable bird.
  • Aluminum foil: Foil will come in handy for preventing the turkey from over-browning.
  • An instant-read thermometer: This is your trusty guide to ensuring the turkey is cooked to perfection.

Thawing the Turkey: A Matter of Patience

Proper thawing is crucial for ensuring your turkey cooks evenly and safely. Ideally, you should start defrosting your 20-pound turkey in the refrigerator 5 to 6 days before Thanksgiving. Place the turkey on a large rimmed baking sheet and let it thaw slowly and evenly.

Preheating the Oven: Setting the Stage for Culinary Success

While your turkey thaws, preheat your oven to 325°F. This moderate temperature ensures the turkey cooks thoroughly without drying out.

Seasoning the Turkey: Infusing Flavor into Every Bite

Don’t underestimate the power of seasoning! Generously season the inside and outside of the turkey with salt and pepper. For an extra burst of flavor, rub butter between the skin and the meat.

Stuffing the Turkey: A Matter of Personal Preference

Stuffing your turkey is optional, but if you choose to do so, ensure the stuffing is cooked separately to avoid foodborne illness. Place the stuffing in a separate baking dish and cook it alongside the turkey.

Roasting the Turkey: A Journey to Golden Perfection

Place the turkey on the rack in the roasting pan, breast side up. Tuck the wings under for a more elegant presentation. Add the aromatics to the bottom of the pan and pour in 1/2 cup of water to prevent scorching.

Slide the pan into the preheated oven and let the magic begin! Roasting a 20-pound turkey will take approximately 4 to 4 1/2 hours at 325°F.

Checking for Doneness: Ensuring a Perfectly Cooked Bird

After about 2-3 hours, check the turkey. If the skin starts to brown too much, gently cover it with a piece of buttered foil. To ensure the turkey is cooked through, use an instant-read thermometer. Insert the thermometer into the thickest part of the thigh, making sure it doesn’t touch any bones. The turkey is done when the thermometer reads 165°F.

Resting the Turkey: Allowing the Flavors to Mingle

Once the turkey is cooked, transfer it to a cutting board and tent it with foil. Let it rest for 45 minutes to an hour while you prepare the gravy. This resting period allows the juices to redistribute, resulting in a more tender and flavorful bird.

Carving and Serving: The Grand Finale

After the turkey has rested, it’s time to carve and serve! Use a sharp knife to slice the turkey into thin pieces and arrange them on a platter. Garnish with fresh herbs and enjoy the fruits of your culinary labor.

Additional Tips for Roasting Perfection:

  • Brining: If you’re cooking a heritage or wild turkey, consider brining it to enhance moisture and flavor.
  • Basting: While basting is often recommended, it’s not strictly necessary. Butter the turkey beforehand to achieve a crispy skin.
  • Oven temperature: While 325°F is the recommended temperature, you can adjust it based on your oven and the size of your turkey.
  • Cooking time: Cooking time can vary depending on the weight of your turkey. Refer to the chart below for estimated cooking times.

Cooking Time Chart for a 20-Pound Turkey:

Turkey Weight Cooking Time Estimated Servings
20 pounds 4 to 4 1/2 hours 16-20

With these tips and a little bit of patience, you’ll be well on your way to roasting a 20-pound turkey that will impress your guests and make your Thanksgiving celebration truly memorable. So, grab your ingredients, preheat your oven, and get ready to create a culinary masterpiece!

How to Cook a Heritage Turkey

Heritage birds are not like your typical Thanksgiving bird in the way that they look, taste, and cook. They have longer thighs and drumsticks, a leaner breast, and a smaller size. Because heritage birds can weigh up to 16 pounds, you might want to roast two side by side if you’re serving a bigger group. Moreover, smaller birds cook faster than their meatier cousins, so if you prefer to have Thanksgiving dinner at noon, you don’t have to get up at the crack of dawn.

Heritage turkeys need to be roasted differently to prevent toughness because they typically lead more active lives. Roasting the bird slowly, at a lower temperature is the best way to achieve tender meat. You should still prep the bird with butter, salt, and pepper, as described above (or dry-brine it). For cooking, preheat your oven to 325°F. Roast a 12- to 14-pound bird for 3½ to 4 hours. Most important, pay attention to the internal temperature. It is noteworthy that certain heritage breeds may produce flesh and bone that retains a pinkish color even after they are thoroughly cooked. But, as long at the temperature has reached 165°F on a reliable meat thermometer, you needn’t worry.

The Simplest Way to Cook a Turkey Thaw your turkey.

A frozen turkey should be thawed in the refrigerator; this process may take a week or longer, depending on the size of the bird. Here’s how long it takes a typical turkey to thaw in the fridge:

  • 4–12 pounds: 1 to 3 days
  • 12–16 pounds: 3 to 4 days
  • 16–20 pounds: 4 to 5 days
  • 20–24 pounds: 5 to 6 days

While there are quicker methods available if you’re pressed for time, the safest option when it comes to cooking is to thaw a turkey in the refrigerator. For tips on preparing a turkey for Thanksgiving, click on our guide:

When it’s time to cook your bird, remove the now-thawed turkey from the refrigerator and let it sit at room temperature for one hour in order to remove any moisture and dry out the skin. (You don’t need to dirty another dish; you can use this rack to roast your turkey.) The turkey’s bottom should be able to rest at or slightly below the top of the pan on your roasting rack. No roasting rack? A heavy-duty cooling rack set inside a half-sheet pan works too. 3. Prep your oven.

Position your oven rack on the lowest rung and set the oven to 350°F. According to some recipes, you should briefly roast the turkey at a high oven temperature before lowering the heat to cook it for the full amount of time. Though we haven’t discovered that it makes much of a difference, the theory is that the high heat “sears” the bird and the low heat gently roasts it, producing a more moist and succulent bird. Plus, the skin gets browned very quickly (often too quickly). You can prepare your mashed potatoes and other Thanksgiving side dishes and spend more time doing other things by using steady heat instead of constantly checking the oven. 4. Butter your turkey.

Place the breast side of your turkey on the roasting rack and brush it with room temperature salted butter or your preferred flavored compound butter. (For a 12- to 14-pound turkey, you’ll need about ½ cup [1 stick] of butter. ) Starting at the neck, carefully work your fingers under the skin, taking care not to rip it or completely separate it at the large cavity. Apply the butter to the skin in three areas: under the skin, inside the large cavity, and on the skin. 5. Season your turkey (if necessary).

This last seasoning can be omitted if you’ve decided to brine your bird (either a wet or dry brine). There’s no need to salt the cavity of kosher turkeys because they’re already salted, but you should salt the skin. How to do it: For a 12- to 14-pound bird, dust the large cavity with 1½ teaspoons of kosher salt and freshly ground black pepper, then sprinkle the skin with another 1½ teaspoon of each seasoning.

Sounds random, we know. However, stuffing the neck cavity (as opposed to the large cavity) with a halved apple, with the rounded side facing out, helps prevent overcooking and acts as a heat buffer for the breast. But don’t fill the main cavity with stuffing—it’ll only slow down your cooking time. Instead, prep your stuffing recipe in a casserole dish and bake it on the side. 7. Add some aromatics.

By leaving some space in the cavity of your turkey for aromatics, you can enhance the flavor and fragrance of the bird as well as the complexity of the pan drippings used to make gravy. Try placing onion quarters, celery stalks, parsley, thyme, and other fresh herbs inside the turkey before roasting.

You can also place some aromatics right in the roasting pan, under the rack. These will caramelize in the more direct heat, perfuming the meat and further flavoring the drippings. Add a few halved shallots, sliced carrots, and some celery. To keep those drippings from burning, add two cups of water to your roasting pan whether you decide to add aromatics or not. 8. Cover (and then uncover) the turkey.

When roasting, loosely cover the bird with aluminum foil, shiny side out to deflect heat. Tenting with foil keeps the skin from getting too dark too soon. Remove the foil about halfway through cooking to let the skin brown. 9. Skip the basting.

Some traditional recipes call for basting the turkey, ostensibly to moisten and flavor the bird. We’ve found that opening the oven door too often lets too much heat escape, lengthening the cooking time. In addition, sprinkling or brushing broth on the skin will hinder even browning and may even cause it to become less crisp. The better way to ensure a moist bird is to dry-brine it before cooking. 10. Calculate turkey cooking time and temperature.

The easiest method for estimating turkey roasting times is to use the following formula: 13 minutes per pound at 350°F for an unstuffed turkey, or roughly 3 hours for a 12- to 14-lb bird. turkey), or 15 minutes per pound for a stuffed turkey. Check the temperature about three quarters of the way through that time, and then every ten minutes after that. Roast until the thickest part of the thigh meat and the thickest part of the breast meat register 165°F (or 150°F, depending on the situation; more on that below).

If, however, you prefer to roast your turkey at a higher or lower temperature, follow these guidelines. (The following cook times are for unstuffed birds. As a general rule, we advise against stuffing turkeys and to bake the stuffing separately so that it can easily come to a safe temperature. )How long to cook a turkey per pound:

  • For an 8- to 12-pound turkey:
  • 325°F for 2¾ to 3 hours
  • For a 12- to 14-pound turkey:
  • 425°F for 2¼ to 2½ hours
  • 400°F for 2½ to 2¾ hours
  • 350°F for 2¾ to 3 hours
  • 325°F for 3 to 3¾ hours
  • For a 15- to 16-pound turkey:
  • 425°F for 3 to 3¼ hours
  • 400°F for 3¼ to 3½ hours
  • 350°F for 3½ to 3¾ hours
  • 325°F for 3¾ to 4 hours
  • For an 18- to 20-pound turkey:
  • 425°F for 3½ to 3¾ hours
  • 400°F for 3¾ to 4 hours
  • 350°F for 4 to 4¼ hours
  • 325°F for 4¼ to 4½ hours
  • For a 21- to 24-pound turkey:
  • 425°F for 4 to 4¼ hours
  • 400°F for 4¼ to 4½ hours
  • 350°F for 4½ to 4¾ hours
  • 325°F for 4¾ to 5 hours
  • For a turkey that weighs 24 pounds or more:
  • 425°F for 4¼ to 4½ hours
  • 400°F for 4½ to 4¾ hours
  • 350°F for 4¾ to 5 hours
  • 325°F for 5 to 5¼ hours

The USDA states that in order to eradicate dangerous bacteria, a turkey must be cooked to a minimum internal temperature of 165°F. For the juiciest meat, you’ll want to remove your bird from the oven when the temperature reaches 150°F. After the turkey is taken out of the oven, the temperature will rise further while it rests and should reach 165°F in about 30 minutes. A temperature of 190°F is preferred by some chefs, such as Chris Morocco, the food director of Epi, for cooking dark meat because it breaks down more collagen and connective tissues, resulting in more tender meat. However, white meat would become dry at this temperature, so it’s best to only aim for it when cooking turkey portions.

Make sure you use an accurate meat thermometer to confirm the final temperature, regardless of the turkey roasting temperature you decide on. Home cooks used to judge when turkey was done by looking at its color. After piercing the bird with a knife, they would know if the juices were clear or pink. But this is not a reliable method for several reasons. First, pinkness can disappear before a safe temperature is reached. Conversely, some turkeys (particularly heritage and organic birds) might never go pink even after cooking to well over 165°F.

You can use a remote food thermometer (the kind with a probe you insert before cooking, which connects to a digital display that sits on your counter) or an instant-read thermometer to check the temperature of the turkey. Either way, insert the thermometer so that its point reaches the thickest part of the turkey’s breast. Be careful not to touch the bone (which will skew the reading). You should also check the thigh to ensure the turkey is cooking evenly all the way through.

Loosely tent the browned sections with a double-thick layer of buttered aluminum foil to protect them from the heat if you notice that the skin is becoming too dark and the desired internal temperature has not been reached.

It’s crucial to give the roast turkey at least 30 minutes to rest after it reaches the ideal temperature before slicing. This allows the bird’s juices to settle and be reabsorbed; if you carve it up too soon, the moisture will simply evaporate, leaving you with dried-out meat that sits atop a puddle on your cutting board. Aluminum foil is not required to be placed over the turkey while it is resting, and doing so will simply result in the skin becoming limp. The turkey can rest for up to 90 minutes and still be hot come carving time. Which means you’ve got plenty of time to make gravy.

How long does it take for a 20 pound turkey to cook in the oven?

FAQ

Is it better to cook a turkey at 325 or 350?

It’s better to cook a turkey at 350°F after preheating the oven to 450°F. This makes the skin crispier and ensures the turkey will get cooked evenly.

What temperature do you cook a 20 pound turkey?

You can find recipes that suggest cooking a turkey at temperatures ranging from 325°F to 375°F or even higher. While higher temperatures will cook the bird faster, we find that they also increase the risk of an overcooked, dry, or even a burnt turkey. That’s why we recommend 325°F.

What size oven do I need for a 20 pound turkey?

In a 30” or wider single oven or range, expect that a 25 lb. or more turkey will fit easily. In a double oven, a 10 lb. turkey pan will fit in the smaller oven as shown in the photo below. In our smallest 24” wall oven interior, a 16” X 13” X 3” inch pan will fit which holds about a 20 lb.

Do you cook a Butterball turkey at 325 or 350?

Preheat oven to 325° F. Drain juices and pat dry with clean paper towels. Place turkey breast-side-up on a flat rack in a shallow roasting pan 2 to 2½ inches deep. Turn the wings back to hold the neck skin in place.

What temperature should a 20 pound turkey be cooked at?

A: The best oven temperature for a 20-pound turkey is 325 degrees Fahrenheit. This will allow the turkey to cook evenly and slowly, resulting in a juicy and flavorful bird. Q: How long does it take to cook a 20-pound turkey at 325 degrees Fahrenheit? A: A 20-pound turkey will take approximately 4 hours to cook at 325 degrees Fahrenheit.

How long do you cook a 20 lb Turkey?

Cook the turkey for approximately 15 minutes per pound. For a 20 lb turkey, this would mean a total cooking time of around 5 hours. Remember to baste the turkey every 30 minutes with the juices in the pan or melted butter to keep it moist and flavorful. Use an oven thermometer to monitor the internal temperature of the turkey.

What temperature do you cook a Turkey in the oven?

For a classic roast turkey, begin by preheating your oven to 425 degrees Fahrenheit; you want it nice and hot at the beginning. However, if the oven temperature is too high for the entirety of the cooking time, the turkey will dry out. Starting the turkey in a hot oven gets the skin crispy and burnished—just what you want.

How long do you cook a Turkey at 325 degrees?

Instead, make a separate pan of Rustic Chestnut Stuffing or Cornbread Sausage Stuffing. These times are based on cooking a room temperature turkey at 325 degrees F the entire time; plan on 10 to 12 minutes per pound.

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