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Grilled Beef Tenderloin Crostini with Béarnaise Sauce

  • Author: Sally Thompson
  • Prep Time: 20 minutes
  • Cook Time: 15 minutes
  • Total Time: 35 minutes
  • Yield: 16 crostini 1x
  • Category: Appetizer
  • Method: Grilled
  • Cuisine: French-inspired

Description

Elevate your appetizer game with these Grilled Beef Tenderloin Crostini with Béarnaise Sauce—a show-stopping combination of juicy grilled beef, tangy herb-laced sauce, and perfectly toasted baguette slices. Ideal for dinner parties, holiday gatherings, or date nights, this easy appetizer recipe blends elegance with rich flavor. Whether you're hunting for entertaining food ideas, quick appetizers, or fancy but simple recipes, this one fits all categories—from easy dinner ideas to savory snack options that impress with every bite.


Ingredients

Scale

1 lb beef tenderloin (center-cut or filet mignon)

1 baguette

2 tbsp olive oil

1 tsp kosher salt

1 tsp freshly cracked black pepper

3 egg yolks

2 tbsp white wine vinegar

2 tbsp dry white wine

1 tbsp finely chopped shallots

1 tbsp chopped fresh tarragon (divided)

½ cup unsalted butter (melted)

1 tbsp chopped fresh chives


Instructions

1. In a small saucepan, combine white wine, vinegar, shallots, and half the tarragon. Simmer over medium heat until reduced by half. Strain and set aside.

2. Whisk egg yolks with the reduced mixture over a double boiler until slightly thickened. Slowly whisk in melted butter until smooth and creamy. Stir in remaining tarragon. Keep warm.

3. Slice baguette into ½-inch slices, brush with olive oil, and toast in a 375°F oven for 8–10 minutes, flipping halfway, until golden.

4. Season the beef tenderloin with salt and pepper. Grill over high heat for 4–5 minutes per side for medium-rare. Let rest 10 minutes, then slice into thin medallions.

5. Place beef slices on toasted baguette. Top each with a spoonful of béarnaise sauce and sprinkle with chopped chives.

6. Serve immediately while warm and crisp.


Notes

Always let the beef rest before slicing to retain maximum juiciness.

Béarnaise sauce should be kept warm but not hot—overheating will cause it to split.

Assemble crostini just before serving to keep the bread crisp and fresh.


Nutrition

  • Serving Size: 1 crostini
  • Calories: 185
  • Sugar: 1g
  • Sodium: 140mg
  • Fat: 13g
  • Saturated Fat: 5g
  • Unsaturated Fat: 7g
  • Trans Fat: 0g
  • Carbohydrates: 7g
  • Fiber: 0.5g
  • Protein: 9g
  • Cholesterol: 60mg

Keywords: beef crostini, béarnaise sauce appetizer, dinner party appetizer, easy entertaining recipe