Roasted Prime Rib with Sauteed Mushrooms and Mom's Creamy Horseradish Sauce

By • October 5, 2011 24 Comments

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Author Notes: Standing rib roast is the perfect choice for very special occasions. It is also surprisingly easy to cook. You will spend more time making your house look nice than cooking. This is my mother's recipe. She makes it for our Christmas dinner every year. The biggest challenge is calculating the cooking time so that the meat is ready when you are. Just in case, have some nice hor d'oeuvres and champagne to hold everyone over.
"And the minute his heart didn't feel quite so tight, He whizzed with his load through the bright morning light And he brought back the toys! And the food for the feast! And he...HE HIMSELF...! The Grinch carved the roast beast!"
How The Grinch Stole Christmas by Dr. Seuss - waverly

Food52 Review: This roast turns out beautifully moist and juicy. There is a nice variety of degrees of doneness from the edges to the center, so there is something for every guest at your table. The whipped cream sauce is a nice complement; the thickness and texture of whipped cream is a great vehicle for the horseradish, giving a kick that compliments the meat. Add lemon juice to taste to perfect the sauce. Don't skip the mushrooms. I loved the addition of Worcestershire -- the perfect little bit of something salty. - biffbourgeoisStephanie Bourgeois

Serves 6-8

  • 2 tablespoons kosher salt
  • 3 teaspoons ground black pepper
  • 3 cloves garlic
  • 2 medium shallots
  • 2 tablespoons fresh rosemary leaves
  • 2 tablespoons fresh thyme leaves
  • 1/2 cup olive oil
  • 1 ( 8lb) standing rib roast, trimmed (to multiply or divide the recipe,this translates to roughly 1 rib for every 2-3 people)
  • 1 cup heavy cream
  • 6 tablespoons lemon juice
  • 1/2 teaspoon salt
  • 1/4 teaspoon paprika
  • 1/4 teaspoon cayenne pepper
  • 4 tablespoons grated horseradish
  • 2 lbs mushrooms, washed, dried, and if large, chopped
  • 4 tablespoons unsalted butter
  • 2 tablespoons olive oil
  • 1-2 tablespoons Worcestershire sauce
  • 2 cloves garlic, finely chopped
  • salt and pepper, to taste
  • 6 tablespoons fresh parsley, chopped
  1. MARINATE: In a food processor, place salt, pepper, garlic, shallots, rosemary, thyme, and olive oil. Pulse until combined. Place the roast bone-side down in a large pan and pour the marinade over it. Rub as much as you can into every crevasse. Cover and refrigerate 4-24 hours.
  2. ROAST: Remove the meat and let it come to room temperature, about 1 hour before you plan to put it into the oven. Meanwhile, preheat the oven to 550 and place the rack in the center. Insert a meat thermometer into the thickest part of the roast. When the oven is ready, place the roast, uncovered, into the oven. Immediately reduce the oven temperature to 350. Cook until the thermometer registers 125 degrees, about 15-20 minutes per pound, or 2 1/2 hours for an 8 lb roast. Check the temperature of the meat in several other places. A range of 125-155 will give you a good variety of doneness. Cover the roast with foil and let it rest on the counter at least 15 minutes before carving.
  3. MAKE THE SAUCE : You can do this while the meat cooks. In a medium bowl, beat cream until stiff. With the mixer on, add lemon juice, salt, paprika, cayenne and horseradish. Chill until ready to serve.
  4. SAUTE THE MUSHROOMS: Heat a large skillet over HIGH heat. Add the butter and olive oil. When the butter foams, give the pan a shake and then add the mushrooms, Worcestershire sauce, and garlic. Toss the mushrooms until brown, about 5-10 minutes. Remove from heat and season with salt and pepper to taste. Toss with parsley and then place in a serving dish.
  5. CARVE: Slice the first piece between the ribs, close to the bone. Cut the second piece half way to the next bone and so on and so on giving each person basically half of the meat between the ribs.
  6. SERVE: Top with sauteed mushrooms and whipped horseradish sauce. Garnish with fresh parsley.

More Great Recipes: Ribs|Beef & Veal|Entrees|Olive Oil

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