If you have an oven, you can roast a turkey! If you cook a turkey at 325 or 350℉, it will take longer to cook than at higher temperatures. Follow these special directions for a delicious meal: Preheat oven to 350° F. Remove wrapper. As long as you’re following the basics like adding a fat under or on the skin and some simple seasonings, you should end up with a tender turkey by following the guidelines below and using a thermometer to check that the internal temperature of the thigh meat is 165 degrees F. So for a 23 lb. How long do I cook a 20 pound turkey? When using a convection oven to cook a stuffed turkey (also at 325 degrees Fahrenheit), Butterball lists the cooking times as: 6-10 pounds: 1¾ - 2½ hours 10-18 pounds: 2½ - 3¼ hours Preheat the oven to 325°F. The rule of thumb for roasting an unstuffed turkey is to cook it for 15 minutes per pound at 325 degrees Fahrenheit. Fully cooked turkeys are an easy way to get a great tasting turkey on the table in less time. How to Roast a Basic Turkey. In a large roasting pan, place thawed turkey, breast side up and tent with a piece of aluminium foil. Cooking Times (Regular Oven 325°) Cooking Times (Convection Oven 325°) How to Roast Fully Cooked Whole Turkeys. The longer the bird stays in the oven, the more likely it is to dry out. Remove foil during last hour of cook time. The water will gently steam your bird. Bake turkey using the chart below. These times are approximate. How Long To Cook A Turkey In The Oven. Always use a food thermometer to check the internal temperature of your turkey and stuffing. Cook until meat thermometer inserted … Does a fresh turkey take longer to cook? Recipes that instruct you to cook your turkey covered will often tell you to add a cup of liquid (water or broth) halfway through roasting. It's safe to cook a completely frozen turkey but it will take at least 50 percent longer than a fully thawed bird. If you’re baking it at 325°F (the lowest temperature the USDA recommends), you’ll need to bake a 20 – lb turkey in the oven for 4 to 5 hours if it’s unstuffed, and 4 ¼ to 5 ¼ hours if it’s stuffed. Timetables for Turkey Roasting (325°F oven temperature) Use the timetables below to determine how long to cook your turkey.