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Steak Crostini with a Creamy Horseradish Sauce

Delicious Steak Crostini with Creamy Horseradish Sauce Delight

This Steak Crostini with a Creamy Horseradish Sauce is a gourmet appetizer that impresses guests effortlessly.
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Prep Time 30 minutes
Cook Time 45 minutes
Resting Time 15 minutes
Total Time 1 hour 30 minutes
Servings: 8 crostini
Course: Appetizers
Cuisine: American
Calories: 250
Ingredients Equipment Method Nutrition Notes

Ingredients
  

For the Steak
  • 1 lb Filet Mignon or Tenderloin High-quality beef for tenderness; sirloin or ribeye can be substituted.
  • to taste Salt Basic seasoning to enhance natural flavors.
  • to taste Black Pepper Basic seasoning to enhance natural flavors.
  • 2 tbsp Unsalted Butter Adds richness when sautéing shallots; substitute with olive oil for lighter option.
  • 1 tsp Dried Thyme Aromatic notes; fresh thyme can replace for vibrant touch.
For the Crostini
  • 1 loaf Baguette Choose a fresh, crusty baguette as the base; gluten-free bread works if needed.
  • 2 tbsp Olive Oil Brush on baguette slices for toasting.
For the Creamy Horseradish Sauce
  • 1 cup Mayonnaise Creamy base; Greek yogurt can lighten it up if desired.
  • 2 tbsp Horseradish Adds sharpness to sauce; adjust based on desired heat level.
  • 1 tbsp Dijon Mustard Gives a tangy kick; regular mustard can work but alters flavor.
  • 1 tbsp Lemon Juice Brightens sauce; substitute with vinegar if needed.
For the Caramelized Onions
  • 2 medium Shallots Sweet, mild flavor for caramelization; regular onions can substitute.
  • 2 tbsp Balsamic Vinegar Deepens the sweetness of shallots; red wine vinegar serves as an alternative.
  • 1 tbsp Brown Sugar Balances acidity; honey or maple syrup can be used instead.

Equipment

  • Skillet
  • Medium saucepan
  • Baking Sheet
  • mixing bowl
  • Meat Thermometer

Method
 

Preparation Steps
  1. Season your filet mignon generously with salt, black pepper, garlic powder, and dried thyme. Allow the seasoned steak to rest for about 30 minutes at room temperature.
  2. In a mixing bowl, combine mayonnaise, horseradish, Dijon mustard, and freshly squeezed lemon juice. Stir well until smooth and creamy. Refrigerate the sauce.
  3. Melt 2 tablespoons of unsalted butter in a medium saucepan over medium heat. Add sliced shallots and a pinch of salt, cooking for about 10-15 minutes.
  4. In a skillet, heat 1 tablespoon of olive oil over medium-high heat. Once hot, add the seasoned steak and sear for about 4 minutes on each side for medium-rare.
  5. Preheat your oven to 375°F (190°C). Slice the baguette into ½-inch thick pieces and brush each side lightly with olive oil.
  6. Spread a generous layer of the creamy horseradish sauce over each toasted baguette slice. Top with a slice of the rested steak and a spoonful of caramelized shallots.

Nutrition

Serving: 1crostiniCalories: 250kcalCarbohydrates: 18gProtein: 15gFat: 15gSaturated Fat: 6gPolyunsaturated Fat: 1gMonounsaturated Fat: 8gCholesterol: 50mgSodium: 450mgPotassium: 200mgFiber: 1gSugar: 3gVitamin A: 500IUVitamin C: 1mgCalcium: 50mgIron: 2mg

Notes

Allow cooked steak to rest for 15 minutes before slicing. Store leftover components separately in airtight containers for up to 3 days.

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