Chateaubriand Royale with Silken Béarnaise Sauce

🌍 Cuisine: French
🏷️ Category: Main Course
⏱️ Prep: 30 minutes
🍳 Cook: 35 minutes
👥 Serves: 2-3 servings

📝 About This Recipe

Named after the 19th-century French diplomat François-René de Chateaubriand, this dish represents the pinnacle of French Haute Cuisine. It features the center-cut of the beef tenderloin, roasted to succulent perfection and served with a decadent, tarragon-infused Béarnaise sauce. This is a celebration of buttery textures and sophisticated herbal notes, designed to be shared as the centerpiece of a truly grand dinner.

🥗 Ingredients

The Beef

  • 20-24 ounces Center-cut Beef Tenderloin (Chateaubriand) (trimmed of all silver skin and tied with butcher's twine)
  • 2 tablespoons Unsalted Butter (high-quality European style)
  • 1 tablespoon Neutral Oil (grapeseed or canola for searing)
  • 1 tablespoon Kosher Salt (or to taste)
  • 1 teaspoon Black Peppercorns (freshly cracked)
  • 3 sprigs Fresh Thyme
  • 2 cloves Garlic (smashed)

Béarnaise Reduction

  • 1/4 cup Dry White Wine (such as Sauvignon Blanc)
  • 2 tablespoons White Wine Vinegar (tarragon-infused vinegar is also excellent)
  • 1 small Shallot (very finely minced)
  • 1 tablespoon Fresh Tarragon (stems only for the reduction, leaves reserved)
  • 1/2 teaspoon Black Peppercorns (crushed)

The Emulsion

  • 3 large Egg Yolks (at room temperature)
  • 1 cup Unsalted Butter (clarified and kept warm (approx. 110°F))
  • 1 tablespoon Fresh Tarragon Leaves (finely chopped)
  • 1 teaspoon Fresh Chervil (finely chopped (optional))
  • 1/2 teaspoon Lemon Juice (to brighten the finish)

👨‍🍳 Instructions

  1. 1

    Remove the beef from the refrigerator at least 45-60 minutes before cooking to bring it to room temperature. This ensures even cooking through the thick center.

  2. 2

    Preheat your oven to 400°F (200°C). Pat the beef completely dry with paper towels; moisture is the enemy of a good sear.

  3. 3

    Prepare the reduction: In a small saucepan over medium heat, combine the wine, vinegar, minced shallots, tarragon stems, and crushed peppercorns. Simmer until the liquid has reduced to about 1-1.5 tablespoons. Strain through a fine-mesh sieve and set aside to cool slightly.

  4. 4

    Season the beef generously on all sides with kosher salt and cracked black pepper, pressing the seasoning into the meat.

  5. 5

    Heat the oil in a heavy, oven-safe stainless steel or cast-iron skillet over high heat until it just begins to smoke. Sear the beef for 2-3 minutes per side until a deep, golden-brown crust forms everywhere.

  6. 6

    Add the 2 tablespoons of butter, smashed garlic, and thyme sprigs to the skillet. Once the butter foams, spoon it repeatedly over the beef (arroser) for 1 minute.

  7. 7

    Transfer the skillet to the oven. Roast until an instant-read thermometer inserted into the thickest part reaches 125°F (52°C) for medium-rare. This usually takes 12-15 minutes.

  8. 8

    While the beef roasts, finish the sauce. Create a bain-marie (double boiler) by placing a glass or stainless bowl over a pot of barely simmering water. Ensure the bottom of the bowl does not touch the water.

  9. 9

    Whisk the egg yolks and the cooled reduction in the bowl vigorously until they become pale and thick enough to leave a trail (the 'ribbon' stage).

  10. 10

    Very slowly, drop by drop at first, whisk in the warm clarified butter. Once the emulsion starts to thicken, you can pour in a thin, steady stream while whisking constantly until the sauce is thick and glossy.

  11. 11

    Remove the sauce from heat. Fold in the chopped tarragon leaves, chervil, and lemon juice. Keep in a warm (not hot) spot.

  12. 12

    Once the beef is done, remove it from the skillet and place it on a warm cutting board. Tent loosely with foil and let it rest for 10-15 minutes to allow juices to redistribute.

  13. 13

    Remove the twine. Slice the Chateaubriand into thick medallions (about 1.5 inches thick) and serve immediately with a generous side of Béarnaise.

💡 Chef's Tips

Always use a meat thermometer; the Chateaubriand is too expensive a cut to leave to guesswork. If your Béarnaise begins to break (separate), whisk in a teaspoon of warm water to bring it back together. Clarifying the butter is essential for a silky texture; milk solids in whole butter can make the sauce feel grainy. Ensure your tarragon is fresh; dried tarragon lacks the essential oils and anise-like aroma required for an authentic Béarnaise. Resting the meat is the most critical step for a juicy, tender result; never skip those 10 minutes.

🍽️ Serving Suggestions

Classic Château Potatoes (tournéed and sautéed in butter) are the traditional accompaniment. Pair with a bold Bordeaux or a structured Cabernet Sauvignon to cut through the richness of the sauce. Serve with steamed asparagus or butter-glazed haricots verts for a touch of freshness. A side of creamed spinach provides a luxurious, earthy contrast to the beef. For a modern touch, serve with a small pile of dressed micro-greens on the side of the plate.