There’s no point in spending money on prime rib if you’re just going to guess when it’s done. By Sam Sifton Sam Sifton’s prime rib roast.Credit ... to New York Times Cooking and see ...
you can cook it for a slightly longer time at a consistently lower temperature, such as 325°F. Try this Prime Rib Roast with Horseradish Cream recipe for that approach. How long to cook prime rib ...