Description
This Steak Crostini with creamy horseradish sauce and caramelized onions is a gourmet appetizer that combines tender steak with a zesty sauce and sweet, caramelized shallots. Perfect for dinner parties or gatherings, it’s an easy yet impressive dish that balances savory, creamy, and sweet flavors, all atop crispy baguette slices.
Ingredients
For the Steak:
- 1 pound sirloin, tenderloin steak, or filet mignon
- Salt and black pepper, to taste
- 2 tablespoons unsalted butter
- 1 teaspoon garlic powder
- 1 teaspoon dried thyme
For the Crostini:
- Baguette, thinly sliced
- Olive oil for brushing
For the Creamy Horseradish Sauce:
- 1/2 cup mayonnaise
- 2 tablespoons prepared horseradish
- 1 tablespoon Dijon mustard
- 1 tablespoon fresh lemon juice
- Salt and black pepper, to taste
For the Caramelized Shallots:
- 2 tablespoons unsalted butter
- 2 large shallots, thinly sliced
- 1 tablespoon balsamic vinegar
- 1 tablespoon brown sugar
- Salt and black pepper, to taste
Instructions
- Season the steak: Sprinkle salt, pepper, garlic powder, and dried thyme over the steak. Let it rest for at least 30 minutes to absorb the seasoning.
- Make the horseradish sauce: Combine mayonnaise, horseradish, Dijon mustard, and lemon juice. Season with salt and pepper. Refrigerate.
- Caramelize the shallots: In a skillet, melt butter over medium heat. Add shallots and cook until softened. Stir in balsamic vinegar, brown sugar, salt, and pepper. Continue to cook until golden brown, about 30 minutes. Remove from heat.
- Cook the steak: Heat olive oil in a skillet over medium-high heat. Cook the steak for 4 minutes per side (for medium-rare), then remove from heat and let it rest.
- Toast the baguette: Preheat the oven to 375°F (190°C). Brush baguette slices with olive oil and bake for 5-7 minutes until golden.
- Assemble the crostini: Slice the steak thinly. Spread the creamy horseradish sauce on each toasted baguette slice, top with steak and a spoonful of caramelized shallots. Garnish with fresh thyme or parsley if desired.
- Serve immediately.
Notes
- For extra flavor, sprinkle some melted cheese like goat cheese or Parmesan before serving.
- Add hot sauce or red pepper flakes to the horseradish sauce for a spicy twist.
- Replace steak with roasted mushrooms for a vegetarian option.
- Prep Time: 15 minutes
- Cook Time: 45 minutes
- Category: Appetizer, Party Food, Snack
- Method: Pan-Seared, Oven Toasted
- Cuisine: American
