The turkey will be around 18-20 poundsIt will not be stuffed and we will probably be eating around 2 or 3 in the afternoonI want an easy way to prepare it and I want to know how long to cook it and at what tempI also want to know when I should cover with foil and when I should take it offI don't want anything fancy like making a brine or anything like thatJust a basic recipe and easy instructions to a tasty birdThank you ahead of time!