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Grilled Beef Tenderloin Crostini with Béarnaise Sauce

Elevate your appetizer game with these delightful crostinis topped with rich beef tenderloin and herbaceous béarnaise sauce.
Print Recipe
Prep Time 15 minutes
Cook Time 20 minutes
Total Time 35 minutes
Servings: 8 servings
Course: Appetizer, Snack
Cuisine: American, French
Calories: 300
Ingredients Method Notes

Ingredients
  

For the beef and crostini
  • 1 lb beef tenderloin, trimmed
  • Salt and pepper, to taste
  • 1 tablespoon olive oil for grilling
  • 1 baguette sliced into ½-inch rounds
For the béarnaise sauce
  • 1 cup fresh tarragon, chopped
  • 1 cup butter unsalted
  • 4 large egg yolks
  • 2 tablespoons white wine vinegar
  • 1 teaspoon Dijon mustard

Method
 

Preparation
  1. Season the beef tenderloin generously with salt and pepper.
  2. Brush the tenderloin with olive oil and grill for 4-5 minutes on each side for medium-rare.
  3. Let the grilled beef rest.
Making the Béarnaise Sauce
  1. In a small saucepan, whisk together the white wine vinegar, tarragon, and egg yolks over low heat until thickened.
  2. Slowly add the butter, one tablespoon at a time, whisking continuously until smooth.
  3. Add the Dijon mustard and season with salt and pepper to taste.
Toasting the Baguette
  1. Preheat the oven to 400°F (200°C).
  2. Place baguette slices on a baking tray, drizzle with olive oil, and toast for 5-7 minutes until golden.
Assembly
  1. Slice the rested beef into thin pieces.
  2. Place a slice of beef on each toasted baguette and top with béarnaise sauce.

Notes

For a crowd, consider skewering the crostinis with toothpicks for easier eating. Extra béarnaise sauce can be stored in the fridge for future use.