
Using dried porcini mushrooms as the base of the rub for this dramatic centerpiece roast gives it the funky, earthy flavor usually associated with expensive dry-aged beef. Our tangy Horseradish-Yogurt Sauce is the perfect accompaniment.
Recipe information
Total Time
5 hours, 45 minutes
Yield
Serves 8–10
Ingredients
Preparation
Step 1
Pulse mushrooms, kosher salt, peppercorns, and marjoram in a spice mill or mini food processor until coarsely ground. Pat meat dry, then rub mushroom mixture all over. Transfer to a wire rack set inside a rimmed baking sheet. Let sit at room temperature 1 hour (for even more flavor, chill, uncovered, overnight, then let sit at room temperature 1 hour before roasting).
Step 2
Preheat oven to 225°F. Roast meat until an instant-read thermometer inserted into the center registers 120°F (for medium-rare), about 4 hours. Tent with foil and let sit at room temperature at least 30 minutes and up to 1 hour.
Step 3
Increase oven temperature to 500°F. Remove foil and roast meat until browned and crisp, 5–10 minutes. Immediately transfer to a cutting board. Cut off ribs in 1 piece, then slice into individual ribs. Carve roast into 1/2" slices and arrange on a serving platter along with ribs. Season with sea salt and serve with Horseradish-Yogurt Sauce, if desired.
Do Ahead
Step 4
Rub can be made 1 day ahead; store in an airtight container at room temperature.