Total Time
21hrs 10mins
Prep 10 mins
Cook 21 hrs

The turkey comes out moist and golden - with no effort on your part. Slow-roasting keeps the juices in. It is nearly impossible to over-bake, because the temperature is so low. The secret is NOT basting or salting. Basting or salting draws out moisture and dries out the turkey. IMPORTANT: Plan ahead: Thaw turkey in refrigerator for 1 day per 4-5 lbs, (For faster thawing, you could thaw in cold water. Change the water frequently.) Allow 1 hour per lb + 1 hour to cook - i.e. total: 21 hours for 20-lb turkey.

Ingredients Nutrition

  • 20 lbs turkey, thawed
  • 12 cup salad oil


  1. Pre-heat oven to 300 degrees.While oven is heating, wash turkey in cold water, removing giblets, neck, tail and any pinfeathers.
  2. Rub oil over all sides of turkey.and place turkey in uncovered roasting pan in oven.
  3. Bake for 1 hours at 300 degrees to kill bacteria. Then lower oven heat to 180 degrees (desired internal temperature). Bake for remaining 20 hours.
  4. If wings or thighs begin to brown too fast, wrap them with foil. About 2 hours before time to serve the turkey, check for doneness. If necessary, raise the oven heat to 350 degrees to finish cooking or browning.
Most Helpful

5 5

Best turkey ever! I've been cooking turkeys this way for over 10 years now and there is no comparison if you want a moist, tender turkey! Turn the oven to a higher temp at the end for a nice brown color, but it's not necessary if you just slice and serve.