Before you start cooking, season the prime rib with 2 tablespoons of olive oil, salt, and pepper. For an extra burst of flavor, consider inserting optional garlic cloves into the roast using a paring knife. Cooking the Perfect Prime Rib Initial Roasting Preheat your oven to a scorching 500°F (260°C). Place the prime rib roast on a rack in a roasting pan. Rub the roast with olive oil and generously season it with salt and pepper. If desired, you can insert garlic cloves into the roast using a paring knife for a delightful infusion of flavor. Roasting to Perfection Place the roasting pan in the oven and roast the prime rib at 500°F for 15 minutes. This high-temperature initial roast will seal in the juices and create a flavorful crust on the outside. Reduce the oven temperature to 325°F (160°C) and continue roasting the prime rib until it reaches your desired level of doneness. Use a meat thermometer to check the internal temperature for precision. For medium-rare, aim for 135°F (57°C). Medium enthusiasts should target 140°F (60°C), while those who prefer well-done should go for 150°F (66°C). Remove the roast from the oven and allow it to rest for 15-20 minutes before slicing and serving. Resting is crucial to retain the juices and ensure a succulent prime rib.