Boneless prime rib roast has a rich beefy flavor and tender texture. The right amount of marbling takes this roast to new heights. Follow the steps to make this roast perfect every time.
Using a sharp knife, cut through the roast’s fat cap in a 1-inch crosshatch pattern, being careful not to cut into meat.
Season roast with 2 tablespoons kosher salt over the entire roast including into the crosshatch cuts. Refrigerate roast, uncovered, for at least 24 hours.
5 Hours Before Serving
Remove roast from the refrigerator and let stand 30 minutes to 1 hour or until room temperature.
Adjust oven rack to lower-middle position and preheat oven to 250 degrees F.
Place roast, fat side up, on a rack set in a large roasting pan. Season roast with black pepper. Roast 3 to 3-1/2 hours or until a meat themometer registers 115 degrees for rare, 120 degrees for medium-rare, or 125 degrees for medium.
Remove roast from the oven and tent loosely with aluminum foil. Let rest for about 30 minutes.
Meanwhile, prepare the au jus, if using.
Set oven temperature to broil. Return the roast to the oven and broil, about 5 minutes, or until the fat cap is evenly browned.
Transfer roast to a carving board. Slice meat into cut into 3/4-inch-thick slices. Serve with au jus and side dishes.