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Pepper-Crusted Steak with Horseradish Cream on Grilled Garlic Crostini

This sophisticated pepper-crusted steak with horseradish cream is a high-protein dish that delivers bold, savoury flavours in every bite. The beef is marinated with rosemary, garlic and cracked peppercorns to ensure a deep infusion of aromatics before being seared to perfection. When served on crisp garlic crostini, the contrast between the tender, pink meat and the crunchy bread creates a wonderful texture that is complemented by the heat of the creamy horseradish topping.

Ideal for elegant entertaining or as a luxurious weekend snack, these canapés are as nutritious as they are indulgent. Using lean top sirloin makes this a protein-rich choice that feels remarkably light. For the best results, ensure you allow the meat to rest thoroughly before slicing, which guarantees a succulent finish that pairs beautifully with a glass of robust red wine.

Continue reading below

Ingredients for Pepper-Crusted Steak with Horseradish Cream on Grilled Garlic Crostini

  • 3 cloves garlic, crushed

  • 1/2 teaspoons hot red pepper flakes

  • 1 tablespoon whole black peppercorns, cracked (I fold them in a paper towel and bash them with a hammer)

  • 1 tablespoon minced fresh rosemary leaves

  • 1/3 cup olive oil

  • 900g London grill (top sirloin), cut 1 1/2 inches thick

  • 2 teaspoons kosher salt

  • Grilled Garlic Crostini

  • Horseradish Cream

How to make Pepper-Crusted Steak with Horseradish Cream on Grilled Garlic Crostini

Combine the garlic, hot red pepper flakes, peppercorns, rosemary, and olive oil in a Zip-loc bag. Add the beef, coating it with the marinade. Squeeze all the air out of the bag so the beef is enveloped by the marinade, and refrigerate for at least 6 hours, or overnight.

Preheat the grill or grill for 15 to 20 minutes. Sprinkle the steak with the salt and grill or grill to rare or medium rare, depending on your preference.

The cooking time will depend on the thickness and temperature of the beef, so push at the steak with your finger, and if it still feels totally raw in the middle, give it a little longer.

This is one of the things that cooks just need to intuit and learn to read the silent signs. Better under than overcooked, so check often, and if your finger defeats you, cut the steak with a knife and have a look. Let the steak rest for at least an hour, to get the juices back into the meat, then cut into short, very thin slices. (The best knife for slicing is a bread knife with wavy rather than pointed teeth, which cuts through beef amazingly well.) Serve on Grilled Garlic Crostini.

Arrange a few shaved slices of beef on each piece of bread, top with a pungent dot of Horseradish Cream, scatter with minced Italian parsley, and dust on a little kosher salt.

Disclaimer

While every effort has been made to ensure the information is accurate and up to date, individual needs may vary and dietary requirements can differ based on personal health conditions. Always check food labels and allergen information before preparing or consuming any recipe. If you have specific health concerns, allergies, intolerances, or are following a medically prescribed diet, seek advice from your GP, pharmacist, or a registered dietitian before making significant changes to your diet or lifestyle.

Article history

The information on this page is peer reviewed by qualified clinicians.

  • 17 Jan 2026 | Originally published

    Authored by:

    UK recipe editors

    Peer reviewed by

    UK recipe editors
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