01 -
Preheat the oven to 200°C. Allow the beef tenderloin to come to room temperature. Trim any excess fat and tie the fillet to ensure even cooking. Season generously with salt and freshly ground black pepper.
02 -
Heat a large frying pan over high heat. Sear the beef tenderloin on all sides until golden-brown. Transfer the beef to a preheated oven and roast for 25 minutes for medium-rare or 30 minutes for well-done. Let the beef rest for 10-15 minutes before slicing.
03 -
Melt the butter in a saucepan over low heat until it starts to bubble. Remove from heat and separate the clarified butter from the sediment. In a blender, combine the egg yolks and white wine vinegar, blending until pale. Slowly drizzle in the melted clarified butter while blending, allowing the sauce to thicken and expand in volume. Stir in fresh tarragon and season with salt to taste. Keep warm for serving.
04 -
Slice the rested beef tenderloin and plate alongside the warm Béarnaise sauce. Serve immediately.