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Rosemary-and-Pepper Standing Rib Roast with Two-Mushroom Pan Sauce

4.7

(33)

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Rosemary-and-Pepper Standing Rib Roast with Two-Mushroom Pan SauceWyatt Counts

Standing rib roast is a special event; it's also surprisingly easy to make. This version gets a spice rub and a rich, earthy sauce that can be largely made ahead.

Recipe information

  • Yield

    Makes 8 servings

Ingredients

1 well-trimmed 8- to 9-pound rib roast (with 4 bones)
6 1/2 teaspoons crushed dried rosemary, divided
1 tablespoon coarse kosher salt
2 teaspoons freshly ground black pepper
1/2 cup plus 2 tablespoons olive oil
2 cups boiling water
1 1/2 ounces dried porcini mushrooms
4 tablespoons (1/2 stick) butter, room temperature, divided
10 ounces fresh button mushrooms, cut into 1/4-inch-thick slices
4 garlic cloves, minced
2 tablespoons all purpose flour
1 1/2 cups low-salt beef broth
3/4 cup dry red wine
2 bunches fresh rosemary (for garnish)

Preparation

  1. Step 1

    Place rib roast, fat side up, in heavy roasting pan. Mix 4 teaspoons crushed rosemary, salt, and pepper in small bowl. Stir in 1/2 cup oil. Rub mixture all over roast. DO AHEAD Can be made 1 day ahead. Cover and chill. Let stand at room temperature 45 minutes before roasting.

    Step 2

    Combine 2 cups boiling water and porcini; let soak until mushrooms soften, about 20 minutes. Strain soaking liquid through fine strainer set over measuring cup; reserve porcini. If needed, add enough water to soaking liquid to measure 1 cup. Coarsely chop porcini.

    Step 3

    Melt 2 tablespoons butter with remaining 2 tablespoons oil in large skillet over medium-high heat. Add fresh mushrooms; sauté until browned, about 6 minutes. Add porcini and garlic; stir 1 minute. Remove from heat. Combine flour, remaining 2 tablespoons butter, and remaining 2 1/2 teaspoons crushed rosemary in small bowl; mash with fork to smooth paste. DO AHEAD Porcini soaking liquid, mushroom mixture, and flour-butter mixture can be made 1 day ahead. Cover separately; chill.

    Step 4

    Place rack in bottom third of oven and preheat to 350°F. Cook roast until instant-read thermometer inserted straight down into top center of roast registers 125°F to 130°F for medium-rare, about 2 hours 30 minutes.

    Step 5

    Transfer roast to platter; cover loosely with foil and let rest 35 to 40 minutes. Skim any fat from top of pan juices (there will be a small amount of pan drippings); reserve juices in pan.

    Step 6

    Set roasting pan atop 2 burners over medium-high heat. Add reserved 1 cup porcini soaking liquid, broth, and wine; bring to boil, scraping up any browned bits. Add mushroom mixture, then butter-flour mixture; whisk constantly over medium-high heat until sauce thickens, about 2 minutes. Season sauce to taste with salt and pepper.

    Step 7

    Garnish roast on platter with fresh rosemary sprigs. Slice roast and serve, passing mushroom sauce separately.

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