The high heat of the oven gives the roast a beautiful golden-brown crust without overcooking the interior. The tenderloin is also great at room temperature.
Ingredients
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¼ cup olive oil
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½ cup prepared white horseradish, squeezed dry
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3 tablespoons grainy mustard
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2 garlic cloves, minced
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1 beef tenderloin, trimmed (about 4 pounds)
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Coarse salt and ground pepper
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2 tablespoons fresh rosemary leaves, chopped
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2 tablespoons fresh thyme leaves, chopped
Directions
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In a large bowl, stir together oil, horseradish, mustard, and garlic. Place beef in bowl, and coat with paste. Cover, and refrigerate 6 hours (or up to overnight).
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Preheat oven to 500 degrees. Line a large rimmed baking sheet with aluminum foil.
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Transfer beef to prepared sheet, and season all over with 2 tablespoons salt, 1 teaspoon pepper, rosemary, and thyme.
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Roast until an instant-read thermometer inserted in thickest part of beef registers 125 degrees, 40 to 42 minutes for medium-rare. Tent beef with foil, and let rest for 15 minutes (or up to 2 hours); slice just before serving.
Cook's Notes
For the juiciest beef, cook the tenderloin to the temperature specified, and be sure to let it rest before slicing.