As I gathered my friends for a cozy get-together, I was reminded how the right appetizer can spark joy and conversation among guests. These Steak Crostini with Horseradish Sauce are just the thing to elevate any occasion. Picture tender ribeye resting on a crisp baguette, all topped with a creamy, zesty sauce that’s sure to impress. What I love about this easy appetizer is how it blends gourmet flair with laid-back preparation—perfect for busy hosts! Plus, you can whip these up in advance, giving you more time to kick back and enjoy the festivities. Are you ready to elevate your next gathering? Let’s dive into this delightful recipe!

Why Choose Steak Crostini Today?
Flavorful Delight: These crostini combine tender ribeye with a creamy horseradish sauce, ensuring a burst of flavor in every bite.
Easy Preparation: Made with just a few ingredients, this recipe is a breeze for even the busiest of hosts.
Crowd-Pleasing Appeal: Perfect for gatherings or game days, these appetizers are sure to leave your guests raving.
Versatile Options: Feel free to mix things up by swapping the toppings, like adding caramelized onions, or trying different cheeses such as Salisbury Steak Meatballs.
Make Ahead: Prep your components in advance, allowing for stress-free entertaining! Enjoy a glass of red wine alongside these delights, making your event even more special.
Steak Crostini Ingredients
For the Crostini
• Ribeye Steak – A flavorful cut that maintains tenderness; New York strip can be substituted if needed.
• Kosher Salt – Essential for enhancing the rich flavor of the ribeye.
• Baguette – Provides the perfect crunchy base; aim for approximately 20 slices.
• Olive Oil – Used to brush the baguette slices for that golden finish.
For the Horseradish Sauce
• Boursin Cheese (Garlic & Herb flavor) – Adds a creamy richness to the sauce; no substitutions recommended for the best flavor.
• Creamed Horseradish – Introduces a delightful kick; adjust the amount to suit your spice preference.
• Water – Helps achieve your desired sauce consistency; add more for a thinner sauce.
For Assembly
• Balsamic Glaze – Drizzled on top for a touch of sweetness and depth; feel free to adjust based on taste.
• Fresh Chives – A lovely garnish that adds color and freshness to your crostini.
With these ingredients, you’re well on your way to crafting the perfect Steak Crostini with Horseradish Sauce that will wow your guests and make your gatherings truly memorable!
Step‑by‑Step Instructions for Steak Crostini with Horseradish Sauce
Step 1: Prep Steak
Begin by bringing your ribeye steak to room temperature, allowing it to sit for about an hour. This ensures even cooking. While it rests, pat the steak dry and season generously with kosher salt. Heat a skillet over medium-high heat and add the steak when hot. Cook for approximately 8 minutes total—2 minutes on each side—pressing down with tongs for an even sear.
Step 2: Rest Steak
Once cooked to your preferred doneness, transfer the ribeye to a cutting board and cover it loosely with aluminum foil. Let it rest for 10 minutes; this allows the juices to redistribute for a tender bite. After resting, slice the steak thinly against the grain, keeping the pieces nice and manageable for your crostini.
Step 3: Prepare Crostini
Preheat your broiler while you prepare the baguette. Slice the baguette into approximately 20 pieces, aiming for uniformity to ensure even toasting. Brush each slice lightly with olive oil and arrange them on a baking sheet. Broil the slices for about 1 to 1.5 minutes or until golden and crispy, carefully watching to prevent burning.
Step 4: Make Sauce
While the crostini are broiling, it’s time to prepare the creamy horseradish sauce. In a saucepan, combine the Boursin cheese, a splash of water, and the creamed horseradish. Heat the mixture over low heat, stirring continuously until the cheese is fully melted and the sauce is smooth and creamy, about 3–5 minutes.
Step 5: Assemble Crostini
Now for the fun part—assembling your Steak Crostini with Horseradish Sauce! On each crispy baguette slice, place a thin slice of the rested steak. Generously drizzle the creamy horseradish sauce on top, then finish with a drizzle of balsamic glaze. Garnish each bite with fresh chives for a pop of color and extra flavor, and get ready to impress your guests!

What to Serve with Steak Crostini with Horseradish Sauce
The perfect meal experience is all about balance, creating a delightful symphony of flavors to accompany your tasty crostini.
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Fresh Arugula Salad: A peppery arugula salad dressed in a light vinaigrette adds a refreshing contrast to the rich crostini.
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Crispy Garlic Potatoes: Roasted garlic potatoes give a satisfying crunch, complementing the tender steak and creamy sauce beautifully.
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Stuffed Mushrooms: Savory stuffed mushrooms can serve as an excellent finger food accompaniment, offering varying textures while enhancing the gathering’s appeal.
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Herbaceous Pasta Salad: A cold pasta salad tossed with herbs, cherry tomatoes, and olives adds a touch of zest that brightens the table without overshadowing the crostini.
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Savory Cheese Platter: Pair with a selection of cheeses, such as aged cheddar and goat cheese, to create a decadent grazing board alongside the crostini.
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Full-Bodied Red Wine: A glass of robust red wine like Cabernet Sauvignon perfectly complements the steak’s flavors, making your gathering feel truly special.
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Chocolate Mousse Cups: End the meal on a sweet note with velvety chocolate mousse, providing a luxurious finish that contrasts well with the savory appetizer.
Pair these delightful options with your Steak Crostini with Horseradish Sauce for an unforgettable dining experience!
Storage Tips for Steak Crostini with Horseradish Sauce
Room Temperature: Serve crostini fresh for the best taste; they should not sit out for more than 30 minutes to maintain their crunch and flavor.
Fridge: Store any leftover sliced steak in an airtight container for up to 1 day. The crostini base should be kept separate to prevent sogginess.
Freezer: If prepared in bulk, freeze the cooked ribeye steak for up to 3 months. To enjoy, thaw overnight in the fridge and reheat gently on the stovetop or microwave.
Reheating: For leftovers, reheat the steak separately and assemble crostini just before serving. This ensures a delightful Steak Crostini with Horseradish Sauce experience for your guests!
Tips for the Best Steak Crostini
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Room Temperature Steak: Ensure the ribeye is at room temperature before cooking, promoting even cooking and a tender result for your steak crostini.
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Precise Cooking Time: Avoid overcooking by timing the steak carefully—2 minutes per side is ideal for medium-rare. Adjust if a different doneness is preferred.
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Watch the Broiler: Keep a close eye on the baguette slices while under the broiler, as they can quickly turn from golden to burnt in just seconds.
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Don’t Rush the Resting: Allow the cooked steak to rest for at least 10 minutes before slicing. This step ensures juicy, flavorful bites in your crostini.
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Customize Your Sauce: Feel free to adjust the amount of creamed horseradish in the sauce for your desired level of spice, ensuring it suits everyone’s palate.
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Presentation Matters: For an eye-catching look, arrange the crostini on a beautiful platter and garnish generously. This elevates the visual appeal of your steak crostini and impresses guests!
Make Ahead Options
These Steak Crostini with Horseradish Sauce are a fantastic meal prep option for busy cooks! You can prepare the horseradish sauce up to 3 days in advance by storing it in an airtight container in the fridge to maintain its creamy texture and zesty flavor. Additionally, the ribeye steak can be cooked and stored for up to 24 hours in the refrigerator, ensuring it stays tender and flavorful; simply slice it thinly before serving. The toasted baguette slices should be made right before serving to retain their crunch, but you can slice the baguette and brush it with olive oil in advance. When ready to impress your guests, simply reheat the steak, assemble the crostini, and enjoy a delicious appetizer with minimal effort!
Steak Crostini with Horseradish Sauce Variations
Feel free to personalize your steak crostini to suit your cravings and impress your guests with tempting twists!
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Cheese Swap:
Change up the cheese to cream cheese or goat cheese for a different creamy flavor profile. -
Herb Infusion:
Elevate your horseradish sauce with fresh herbs like dill or parsley for a refreshing herbal note. -
Kick it Up a Notch:
Add a dash of hot sauce or a pinch of paprika for a spicy twist that adds a delightful heat. -
Baguette Alternatives:
Try using croissant or pita chips for a unique base that offers exciting textures and flavors.
For a nutty crunch, consider serving on toasted polenta rounds or homemade tortilla chips for a fun twist!
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Gourmet Toppings:
Top your crostini with caramelized onions or sautéed mushrooms for a rich and hearty addition. -
Vegetarian Version:
Swap steak for marinated grilled portobello mushrooms to create a satisfying vegetarian option that doesn’t skimp on flavor. -
Vegan Makeover:
Use cashew cream blended with horseradish as a dairy-free alternative and skip the meat for a completely vegan dish.
Be sure to check out my other recipes like Salisbury Steak Meatballs or Juicy Steak Bites with Garlic Butter Parmesan for more delicious steak-centric inspiration!

Steak Crostini with Horseradish Sauce Recipe FAQs
How do I choose the right ribeye steak?
Absolutely! Look for ribeye steaks that have a good amount of marbling, which indicates tenderness and flavor. The meat should be a bright red color without any dark spots; if you see dark patches, it may not be fresh. If ribeye isn’t available, New York strip is a great substitute, offering similar taste and tenderness.
What’s the best way to store leftover steak crostini?
Very good question! Store any leftover sliced steak in an airtight container in the fridge for up to 1 day. Keep the baguette slices and sauce separate to prevent the bread from getting soggy. The crostini should be assembled just before serving for optimal freshness and crunch.
Can I freeze the cooked ribeye?
Yes, indeed! If you’ve made extra steak, you can absolutely freeze it. Wrap the cooked ribeye tightly in plastic wrap or aluminum foil, then place it in a freezer-safe bag. It can be stored like this for up to 3 months. To use, thaw overnight in the fridge and reheat gently on the stovetop or in the microwave before assembling the crostini.
What if my horseradish sauce is too spicy?
No worry at all! If you find your horseradish sauce too spicy for your taste, you can adjust the creaminess by mixing in a bit more Boursin cheese or adding a splash of heavy cream. This not only tones down the spice but also enriches the flavor. Alternatively, if you’re starting from scratch, use a tad less horseradish in your sauce preparation.
Can I make the components ahead of time?
Absolutely! You can prep all the components in advance. The baguette slices can be baked and stored for up to 5 days in an airtight container. The horseradish sauce is best made fresh but can last in the fridge for 1 to 2 days. The cooked steak can be pre-sliced and stored as well. Preparing ahead allows you to focus on enjoying your gathering without the stress of last-minute cooking.
Are there any dietary restrictions I should be aware of?
Very important to consider! The main ingredients in this Steak Crostini with Horseradish Sauce might pose an issue for guests with dairy allergies due to the Boursin cheese. The horseradish itself is generally safe unless someone has a specific allergy to it. Always best to check with your guests beforehand to make sure everyone can enjoy this delicious appetizer!

Steak Crostini with Horseradish Sauce for Flavorful Gatherings
Ingredients
Equipment
Method
- Bring ribeye steak to room temperature, season with kosher salt, and cook in a hot skillet for approximately 8 minutes total.
- Transfer the cooked steak to a cutting board, cover with foil, and let it rest for 10 minutes before slicing.
- Preheat broiler, slice baguette, brush with olive oil, and broil for about 1 to 1.5 minutes until golden and crispy.
- Combine Boursin cheese, water, and creamed horseradish in a saucepan, heat until smooth and creamy.
- Assemble crostini by placing a slice of steak on each baguette, drizzle with sauce, and garnish with chives.

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