Cooking time for a 15 lb turkey refers to the amount of time needed to cook a turkey that weighs 15 pounds. The cooking time can vary depending on the cooking method used, but it is generally recommended to cook a turkey at 325 degrees Fahrenheit for about 13-15 minutes per pound. This means that a 15 lb turkey would take approximately 3 hours and 45 minutes to 4 hours and 15 minutes to cook.
It is important to cook a turkey to the correct temperature to ensure that it is safe to eat. The internal temperature of the turkey should reach 165 degrees Fahrenheit before it is removed from the oven. Using a meat thermometer is the best way to ensure that the turkey is cooked to the correct temperature.