Preheat oven 500 degrees. Leave empty 1 hour. Salt and pepper turkey, rub with 1/2 stick butter, put 1/2 stick inside turkey. Put turkey in large roaster with 8 cups water. Cover securely. While oven is still at 500 degrees, roast turkey for one hour. Leave covered and in oven for 8 hours after heat is off. Turkey will be juicy.