What is a Prime Rib? A Prime Rib Roast is a very tender, flavorful, and usually an expensive cut of beef. Also known as a Standing Rib Roast, it is a popular centerpiece to a Christmas table and other festive holidays throughout the year. Prime Rib Roast is a tender cut of beef taken from the rib primal cut. The generous marbling and fatty layer are what gives this cut the distinct and juicy flavor that you are paying for, so leave it on the roast.

Prime rib claims center stage during holiday season for a very good reason. It is the king of beef cuts.

Beautifully marbled with fat, this roast is rich, juicy, and tender—a feast for the eyes and the belly.

When I was first time saw this recipe on Food 52, few months ago, I thought it will be great for family dinner, especially for keto dinner




Serves 8 to 10


For the Mustard and Herb Butter


4          ounces (1/2 cup or 1 stick) unsalted butter, cut into chunks

6          medium cloves garlic

1/4       cup loosely packed fresh rosemary leaves

1/4       cup loosely packed fresh sage leaves

1/4       cup loosely packed fresh thyme leaves

1/4       cup Dijon mustard

1          tablespoon Worcestershire sauce

Kosher salt and freshly ground black pepper


For the Prime Rib

5- to 6-pound boneless beef rib roast, patted dry

2  tablespoons olive oil, if needed for searing




Melt the butter in an 8-inch skillet over medium heat. Let it foam until it turns light brown and smells nutty, about 5 minutes. Immediately pour the butter into a small heatproof bowl, leaving most of the milk solids in the bottom of the skillet. Refrigerate the butter until solid, about 1 hour (or freeze, to speed this up).

Purée the garlic, rosemary, sage, thyme, mustard, Worcestershire, 1 1/2 teaspoons salt, and 1 teaspoon pepper with the solidified browned butter in a food processor to make a thick paste. Reserve 1/4 cup of the butter and rub the rest all over the roast. Put the roast fat side-up on a rack set in a roasting pan and let sit at room temperature for 1 hour before roasting.

Position a rack in the center of the oven and heat the oven to 300° F. Roast the beef until an instant-read thermometer registers 110° F for rare, about 1 1/2 hours, or 115° F for medium rare, about 10 minutes more. Remove the roast from the oven. Let sit, tented loosely with foil, for up to 2 hours (or continue with the recipe).

To sear in the oven: Heat the oven to 475° F. Roast until 125° F for rare or 130° F for medium rare, about 10 minutes.

Or, to sear on the stove: Heat the oil in a heavy 12-inch skillet until shimmering hot. Sear the beef, turning and pressing down with tongs, until browned all over and cooked to desired temperature, about 4 minutes per side. Transfer to a cutting board. If there was no earlier rest between roasting and searing, let the roast rest for 15 to 20 minutes. Slice and serve with the reserved mustard butter.


The beef can be roasted and then sit at room temperature, tented with foil, for up to 2 hours before the final sear.

originally from: Food 52

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