An easy prime rib recipe consists of one standing rib roast with three to seven ribs, salt and freshly ground black pepper. The estimated serving is two people per rib.
To make the prime rib, remove the roast from the refrigerator at least three hours before cooking. Sprinkle all over with salt, and let it sit loosely wrapped in butcher's paper. Make sure to cut the bones away from the roast, and tie them back on the roast with kitchen string. Preheat the oven to 500 degrees Fahrenheit, and pat with paper towels to remove moisture. Sprinkle with salt and pepper.
Place the roast fat-side up in a roasting pan, and insert a meat thermometer into it. Brown the roast in the oven for 15 minutes, then reduce the heat to 325 degrees F. Cooking time is about 15-17 minutes per pound for medium rare. Roast in the oven until the thermometer says 125-130 degrees F. Remove it from the oven, and place on a carving board. Cover the roast with foil, and let it rest for about 30 minutes. The internal temperature of the roast continues to increase during resting.
Cut the strings away, and remove the bones. Slice the meat across the grain with a sharp carving knife, making 1/4 to 1/2-inch thick slices. The roast is now ready to eat.