Pepper-crusted tenderloin served chilled with warm, buttery October leeks and silky mustard cream makes an elegant, portable contrast to the host’s bourguignon.
- Total time: 225 min
- Servings: 8 servings
- Estimated total cost: $94
- Calories per serving: 420 cal
- Stovetop
- Oven
Drink pairing: Saint-Émilion Grand Cru complements the tenderloin’s richness, while Côtes du Rhône Villages echoes its peppery crust and thyme-scented leeks.
Details
Ingredients
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Beef tenderloin steaks2 pounds, preferably four steaks about 2 inches thick $41.99
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Organic leeks2 pounds untrimmed, yielding about 1½ pounds trimmed $3.49
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Morton kosher salt flakes3¾ teaspoons, divided
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Coarsely cracked black pepper2 teaspoons
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Neutral cooking oil1 tablespoon
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Unsalted butter4 tablespoons, divided
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Organic fresh thyme4 sprigs $2.49
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Organic garlic2 cloves $6.99
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Unsalted beef stock½ cup
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Heavy cream1 cup
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Dijon mustard2 tablespoons
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White wine vinegar1 teaspoon
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Kermit Lynch Cotes du Rhone, 750 ML1 bottle $15.99
Instructions
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Heat the oven to 275°F. Pat 2 pounds beef tenderloin steaks dry and season all over with 2⅜ teaspoons Morton kosher salt flakes and 2 teaspoons coarsely cracked black pepper, pressing gently to adhere. Let stand for 20 minutes while preparing the leeks.
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Trim the roots and tough dark-green tops from 2 pounds organic leeks, retaining about 1½ pounds of white and light-green portions. Halve lengthwise, rinse thoroughly between the layers, and cut into 3-inch lengths. Drain well.
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Melt 2 tablespoons unsalted butter in a wide, lidded skillet over medium heat. Arrange the prepared leeks cut-side down and cook for 4 minutes. Add ½ cup water, 4 sprigs fresh thyme, and 1⅜ teaspoons Morton kosher salt flakes. Cover and simmer gently for 20–25 minutes, until tender. Uncover and simmer for another 3–5 minutes to reduce excess liquid, keeping the leeks intact. Remove the thyme stems.
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Heat 1 tablespoon neutral cooking oil in a large ovenproof skillet over medium-high heat. Sear the seasoned steaks for about 6–8 minutes total, turning to brown both broad sides and the edges. Transfer the skillet to the oven and roast for 20–35 minutes, checking early, until the centers reach a pull temperature of 125°F for medium-rare. Transfer the steaks to a clean plate and rest for 10 minutes. Reserve the skillet for the sauce.
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Peel and finely mince 2 cloves organic garlic. Carefully pour excess fat from the steak skillet, leaving the browned bits. Place over medium-low heat, add 2 tablespoons unsalted butter and the minced garlic, and stir for 30 seconds. Add ½ cup unsalted beef stock, scrape up the browned bits, and simmer for 3 minutes.
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Add 1 cup heavy cream to the skillet and simmer gently for 4–6 minutes, until lightly thickened. Remove from the heat and whisk in 2 tablespoons Dijon mustard and 1 teaspoon white wine vinegar. Transfer the mustard cream to a shallow container, separate from the beef and leeks.
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After the beef has rested, slice it across the grain into ½-inch slices and arrange in a single layer in shallow containers. Transfer the leeks to another shallow container. Promptly refrigerate the beef, leeks, and sauce for about 2 hours, until thoroughly cold; cover once chilled. This chilling time is included in the total recipe time.
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Transport all three components in an insulated cooler with ice packs, keeping them at 40°F or below. Plan on access to a stove or microwave at the party for the leeks and sauce; keep the beef chilled until shortly before plating.
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At the party, gently reheat the leeks, covered, with 2 tablespoons water until steaming throughout, about 8–10 minutes. Separately warm the mustard cream over low heat for 5–7 minutes, stirring frequently without boiling. Leave the sliced beef chilled—it is intentionally served cold rather than reheated and overcooked.
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Arrange the warm leeks on a serving platter and fan the chilled tenderloin alongside them. Spoon a little warm mustard cream beside the beef and serve the rest in a separate sauceboat. Offer as 8 small entrée portions, or 6 slightly larger tasting portions. Keep any portions not being served refrigerated, and limit unrefrigerated serving time to 2 hours.
Want more detail? See the temperature guide.
Wine picks:
- Kermit Lynch Cotes du Rhone, 750 ML $15.99 1 bottle
- Stags' Leap Winery Cabernet Sauvignon, 750 ML $56.99 1 bottle
Why it works: Both suit the tenderloin’s pepper crust and mustard cream without overwhelming its delicate chilled texture. Kermit Lynch Côtes du Rhône brings savory pepper and herb notes that echo the thyme-braised leeks; the richer, polished Stags’ Leap Cabernet is a fitting elegant option for the beef and creamy sauce.