Use my easy "mathematical method" for cooking prime rib, and you'll be rewarded with the best prime rib that's perfectly pink and delicious. For the math to work, you must leave the beef out at room temperature for at least 6 hours.
Prep Time 10 minutes mins
Cook Time 2 hours hrs 20 minutes mins
Total Time 4 hours hrs 30 minutes mins
The success of this method hinges on the roast reaching true room temperature (ideally 6+ hours, as suggested by Chef John in his full explanation, even though the recipe states 2-4 hours) before cooking, ensuring even heat penetration. A good quality, high-heat roasting pan is crucial for achieving a proper crust during the initial sear. While the recipe relies on a timed method, for ultimate precision, a reliable leave-in meat thermometer is invaluable; target 120-125°F (49-52°C) for rare, as the temperature will continue to rise during the rest. The extended rest in the cooling oven is vital for re-distributing juices, resulting in a tender, uniformly pink interior. Ensure liberal seasoning with kosher salt for optimal flavor and crust formation. Always carve against the grain for maximum tenderness and an optimal eating experience.