The reason I call this the "True Prime Rib" is that most restaurants & buffets carve a large boneless roast that they pass off as prime rib. The only true prime rib is made from a STANDING RIB ROAST! The person that reviewed this recipe and found a wrong oven temp. in step 14 is out of their mind. Please disregard that review... If you have any questions, you can e-mail me: AlanLeonetti@q.com.