If your prime rib is colder than this, you may need to cook it longer. And if it’s warmer than this (say, room temp), it will cook much more quickly, so you should reduce the total cooking time.

Our rib roast recipes usually call for you to lug out a large roasting pan, but a 13×9-inch dish works, too. If you’re opting for this rack-free baking pan, however, layer the bottom with ...

If cooking to medium-well, cook until a thermometer reached 150 degrees F. 6. Once the roast is at desired doneness, remove it from the oven and tent it with foil.

LaFreida’s favorite cooking temperature for cooking prime rib is 325°, which he thinks creates the perfect medium sear. We’ve included cooking details for that temperature below as well.