How to Cook a Porterhouse Steak?

To broil a porterhouse steak in the oven first make sure the rack of the broiler pan is at least 3 inches from the broiler for a 1 1/2 inch steak. Preheat oven broiler. For a rare steak broil for 18 to 25 minutes. For a medium steak it will take 26 to 30 minutes and a well-done steak will take 31 to 36 minutes.