Preheat your oven to 500°F.
Let the prime rib sit at room temperature for at least an hour.
This step brings the roast to a consistent temperature for even cooking.
Mix salt, black pepper, rosemary, thyme, and garlic in a small bowl.
Rub the prime rib all over with olive oil, then coat thoroughly with the herb mixture.
Place the seasoned prime rib on a rack in a roasting pan, bone-side down.
Roast in the preheated oven for 15 minutes.
This sears the exterior and seals in flavor.
Reduce the oven temperature to 325°F.
Continue roasting until the internal temperature reaches your desired doneness: 115°F for rare, 125°F for medium-rare.
This takes about 2 to 2.5 hours.
Remove the roast from the oven, tent it with foil, and let it rest for at least 20 minutes.
Letting it rest ensures juicy, tender cuts.