Zingy Steak Crostini with Horseradish Recipe for Bold Flavors

Crisp, golden bread meets tender beef in this irresistible steak crostini horseradish recipe that promises a burst of flavor in every bite.

Thin slices of perfectly seared steak nestle atop crunchy toasted baguette rounds with a zesty horseradish kick.

The combination creates an elegant appetizer that’s both simple and sophisticated.

Creamy, tangy horseradish sauce adds a bold punch to the rich meat.

Each bite delivers a delightful contrast of textures and robust flavors that will impress even the most discerning palate.

This appetizer transforms ordinary ingredients into an extraordinary culinary experience.

You’ll want to serve these at your next gathering for an instant crowd-pleaser that disappears in moments.

Steak Crostini with Horseradish: Crowd Pleasers Explained

• Quick Flavor Explosion: Steak crostini delivers a punch of gourmet taste with minimal kitchen effort, blending rich grilled steak, creamy horseradish sauce, and sweet caramelized onions.
• Versatile Party Pleaser: Perfect for gatherings, these bite-sized appetizers impress guests with elegant presentation and can be prepared in stages, making hosting stress-free.
• Customize with Ease: Swap ingredients or adjust spice levels to suit personal preferences, allowing home cooks to create a personalized version that matches their taste buds.
• Restaurant-Quality at Home: Elevate your cooking skills by mastering restaurant-style techniques like grilling steak perfectly and caramelizing onions, without needing professional training.

Steak Crostini Ingredient Must-Haves

• Steak: A tender and flavorful cut perfect for creating a delicious crostini topping.

• Baguette: A classic French bread that provides a crisp and sturdy foundation for the crostini.

• Sour Cream, Horseradish, Dijon Mustard: A creamy and tangy mixture that adds zesty flavor to the dish.
• Worcestershire Sauce: Provides a deep, savory undertone to the sauce.
• Vinegar: Adds a bright and sharp accent to balance the rich ingredients.

• Chives: A mild onion-like herb that offers a fresh and delicate garnish.
• Salt, Pepper: Essential seasonings that enhance the overall taste of the steak and sauce.

• Onions: Sweet and golden-brown when slowly cooked to develop a rich, complex flavor.
• Sugar: Helps to accelerate the caramelization process and deepen the onions' sweetness.
• Oil, Butter: Provide the fat needed to cook and brown the onions.

• Balsamic: A sweet and tangy drizzle that adds depth and shine to the crostini.
• Garlic: Infuses the bread with a robust and aromatic flavor.

How to Craft Steak Crostini Horseradish Bites

Step 1: Fire Up The Grill

Crank the grill to a sizzling 450°F.

Generously season the steak with your favorite spices.

Grill the meat for 4-5 minutes on each side until it reaches a perfect medium-rare temperature of 125°F.

Let the steak rest and relax for 10 minutes to lock in those delicious juices.

Step 2: Whip Up The Creamy Sauce

• Sour cream
• Horseradish
• Dijon mustard
• Vinegar
• Worcestershire sauce
• Chopped chives
• Salt
• Pepper

Whisk everything together until smooth and well-blended.

Step 3: Create Crispy Crostini

Slice the baguette into elegant rounds.

• Butter
• Olive oil
• Minced garlic

Brush each bread slice with the mixture.

Bake at 375°F for 5 minutes per side until the edges are golden and crisp.

Step 4: Caramelize Sweet Onions

In a skillet, melt butter and heat oil.

Add sliced onions and cook slowly for 15-20 minutes.

Sprinkle a touch of sugar and continue cooking for an additional 3-4 minutes until they turn a rich, golden brown.

Step 5: Assemble Your Masterpiece

Layer each crostini with a generous spread of the creamy sauce.

Top with thinly sliced steak and a spoonful of caramelized onions.

Garnish with fresh chives and a drizzle of balsamic glaze for an extra flavor punch.

Helpful Pointers for Steak Crostini Fans

• Cut the steak against the grain for maximum tenderness and easier chewing, ensuring each bite is perfectly tender.
• Adjust horseradish amount to personal taste, starting with less and adding gradually to control spiciness without overwhelming other flavors.
• Toast bread just before serving to maintain crispness, and let guests assemble their own to keep the bread crunchy.
• Use a combination of butter and oil for deeper flavor, and add a pinch of salt to help break down onions faster.
• Make sauce and caramelize onions in advance, allowing flavors to meld and reducing last-minute cooking stress.

Tasty Variations for Steak Crostini Lovers

• Low-Carb Lettuce Wraps: Replace baguette with crisp lettuce leaves, creating a gluten-free, low-carb alternative that keeps the delicious steak and horseradish flavors.
• Vegetarian Mushroom Option: Swap steak with grilled portobello mushrooms, maintaining the savory profile while offering a plant-based version of the recipe.
• Dairy-Free Adaptation: Use coconut cream instead of sour cream, and replace butter with olive oil to create an allergen-friendly version that's equally tasty.
• Spicy Southwest Style: Add jalapeños to the horseradish sauce and use chipotle-seasoned steak for a bold, zesty variation that kicks up the flavor intensity.

Serving Ideas for Horseradish Steak Crostini

• Party Appetizer Platter: Arrange crostini on a rustic wooden board, creating an elegant display that invites guests to grab and enjoy these bite-sized delights.
• Cocktail Pairing Magic: Serve alongside crisp white wine or a bold red to complement the rich, savory flavors of the steak and caramelized onions.
• Wine Night Delight: Perfect small plate for intimate gatherings, offering a gourmet touch that feels both sophisticated and comforting with its tender steak and zesty horseradish sauce.
• Brunch Showstopper: Transform this recipe into a weekend brunch centerpiece, allowing guests to enjoy these elegant crostini as a luxurious mid-morning treat.

The Right Way to Store Crostini Bites

• Store assembled crostini in an airtight container in the refrigerator for up to 2 days, keeping the crispy texture intact.
• Keep steak, sauce, and caramelized onions in separate sealed containers to maintain freshness and prevent soggy bread.
• Warm steak gently in a skillet or microwave at low heat to prevent overcooking, and toast bread briefly in the oven to restore crispness.
• Horseradish cream sauce can be frozen in a freezer-safe container for up to 1 month, thawing in the refrigerator overnight before use.

FAQs

• What type of steak works best for this recipe?

Ribeye or sirloin are ideal because they’re tender, flavorful, and grill beautifully with a nice marbling that keeps the meat juicy.

• How spicy is the horseradish sauce?

The sauce has a mild to moderate kick depending on the horseradish brand. You can adjust the heat by adding more or less horseradish to suit your taste preference.

• Can I make this recipe ahead of time?

Yes, you can prepare the sauce and caramelize onions in advance. Grill the steak and toast the bread just before serving to maintain the best texture and flavor.

• Do I need any special equipment to make these crostini?

A grill or grill pan, baking sheet, and whisk are helpful. Most home cooks already have these basic kitchen tools for preparing this appetizer.

Steak Crostini Horseradish Recipe

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4.8 from 27 reviews

• Total Time: 55 minutes
• Yield: 8 1x

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Description

Luxurious Steak Crostini with Horseradish elevates party appetizers to gourmet heights. Bold flavors and elegant presentation promise delightful bites that will impress guests and satisfy sophisticated palates.

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Ingredients

Scale 1x2x3x

Protein:

• 8 ounces (226 grams) filet mignon
• 2 tablespoons steak seasoning

Crostini Base and Herbs:

• 1 baguette, day-old
• 2 tablespoons butter
• 1/4 cup olive oil
• 1 garlic clove
• 1 onion, diced
• 1/2 tablespoon fresh chives

Sauce and Seasoning:

• 1 cup sour cream
• 1/4 cup prepared horseradish
• 1 1/2 tablespoons dijon mustard
• 1 teaspoon champagne vinegar
• 1 teaspoon worcestershire sauce
• 1/4 teaspoon sugar
• Balsamic glaze for serving

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Instructions

1. Preheat grill to searing temperature of 450F. Season steak generously with preferred seasoning blend.
2. Grill steak for 4-5 minutes on each side, targeting internal temperature of 125F for medium rare doneness.
3. Remove steak from grill and allow to rest for 10 minutes, allowing juices to redistribute throughout meat.
4. While steak rests, prepare horseradish cream sauce by whisking sour cream, horseradish, dijon mustard, vinegar, worcestershire sauce, chopped chives, salt, and pepper until smooth and well combined.
5. Slice baguette diagonally into thin, uniform pieces for crostini base.
6. Create garlic butter mixture by combining melted butter, olive oil, and minced garlic.
7. Brush each baguette slice with garlic butter mixture and arrange on baking sheet.
8. Toast bread in preheated oven at 375F for 5 minutes per side until edges are crisp and golden.
9. In separate pan, caramelize onions over medium-low heat using combination of oil and butter for 15-20 minutes.
10. Sprinkle small amount of sugar over onions during final 3-4 minutes of cooking to enhance browning and sweetness.
11. Slice rested steak against grain into thin, elegant strips.
12. Assemble crostini by spreading horseradish sauce on toasted bread, layering with steak slices and caramelized onions.
13. Finish by garnishing with fresh chopped chives and drizzle of balsamic reduction.

Notes

• Choose a well-marbled cut like ribeye or sirloin for maximum flavor and tenderness when grilling.
• Slice steak against the grain to ensure each bite remains juicy and easy to chew.
• Allow steak to reach room temperature before grilling to promote even cooking and better sear.
• Use fresh horseradish for a more vibrant and zesty sauce that elevates the entire dish.
• Caramelize onions slowly to develop deep, sweet complexity that complements the rich steak.
• Try different bread types like sourdough or ciabatta for varied texture and taste.
• Make extra sauce and store in refrigerator for up to 3 days as a versatile condiment.
• For gluten-free option, replace baguette with gluten-free bread or roasted sweet potato slices.

• Prep Time: 25 minutes
• Cook Time: 30 minutes
• Category: Appetizer, Snacks
• Method: Grilling
• Cuisine: American

Nutrition

• Serving Size: 8
• Calories: 350
• Sugar: 1 g
• Sodium: 500 mg
• Fat: 25 g
• Saturated Fat: 8 g
• Unsaturated Fat: 15 g
• Trans Fat: 0 g
• Carbohydrates: 20 g
• Fiber: 1 g
• Protein: 10 g
• Cholesterol: 40 mg