Print

5 Stars 4 Stars 3 Stars 2 Stars 1 Star

No reviews

Crispy crostini topped with creamy horseradish sauce, sweet caramelized onions, and tender slices of seared steak—perfect for elegant appetizers and party platters.

Ingredients

Scale
  • 1 French baguette, sliced

  • 1 lb sirloin or ribeye steak

  • 2 yellow onions, thinly sliced

  • 2 tbsp butter or olive oil

  • Salt and black pepper

  • ½ cup sour cream or crème fraîche

  • 12 tbsp prepared horseradish

  • 1 tsp Dijon mustard

  • 1 tsp lemon juice

  • Optional: parsley, thyme, Parmesan shavings

Instructions

  • Caramelize onions in butter over low heat for 30–40 mins.

  • Mix horseradish sauce and chill.

  • Toast baguette slices at 375°F until golden.

  • Sear steak 2–3 mins per side, rest, then slice thinly.

  • Spread sauce on crostini, top with onions and steak.

  • Garnish and serve warm or at room temp.