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Beef Tenderloin Crostini with Béarnaise Sauce

A sophisticated yet simple recipe featuring tender beef on crispy crostini, topped with creamy Béarnaise sauce—a perfect dish for entertaining or cozy dinners.
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Prep Time 15 minutes
Cook Time 25 minutes
Total Time 40 minutes
Servings: 8 servings
Course: Appetizer, Starter
Cuisine: American, French
Calories: 250
Ingredients Method Notes

Ingredients
  

For the Crostini
  • 1 French baguette 1 French baguette, sliced into ½-inch pieces
  • ¼ cup ¼ cup olive oil
  • Salt and pepper, to taste
For the Beef Tenderloin
  • 1 pound 1 pound beef tenderloin, trimmed
  • 2 tablespoons 2 tablespoons Dijon mustard
  • Salt and pepper, to taste
For the Béarnaise Sauce
  • 1 cup 1 cup unsalted butter
  • 2 large 2 large egg yolks
  • 2 tablespoons 2 tablespoons white wine vinegar
  • 1 tablespoon 1 tablespoon fresh tarragon, chopped (plus more for garnish)
  • 1 tablespoon 1 tablespoon shallots, minced
  • Salt and pepper, to taste

Method
 

Preparation
  1. Preheat your oven to 400°F (200°C). Arrange the baguette slices on a baking sheet, brush with olive oil, and sprinkle with salt and pepper. Bake for about 10 minutes until golden and crispy.
  2. Season your beef tenderloin with salt and pepper, then rub it with Dijon mustard.
  3. In a hot skillet, sear the beef on all sides for about 3-4 minutes per side until you achieve a beautiful brown crust. Transfer it to a baking dish and roast in the oven for another 10-15 minutes for medium-rare doneness.
  4. While your meat is resting, melt the butter in a saucepan.
  5. In another bowl, whisk the egg yolks with white wine vinegar, tarragon, and shallots over low heat until thickened.
  6. Gradually whisk in the melted butter until the sauce shines and thickens. If the sauce gets too thick, add a splash of warm water.
  7. Slice the beef into thin pieces. On each crostini, layer a slice of beef and drizzle with Béarnaise sauce. Top with a sprinkle of fresh tarragon.
Serving
  1. Arrange your beautiful crostini on a platter and enjoy the delightful reactions from your guests.

Notes

Timing is key; enjoy the process and pour yourself a drink while cooking. Leftover Béarnaise can be used for veggies or grilled chicken. Cooking should be joyful, not perfect!