Roast Beef Crostini with Horseradish Cream

Roast Beef Crostini with Horseradish Cream is an easy to make appetizer that feel a little bit fancy. Thin slices of deli roast beef top toasty crostini along with a tangy horseradish cream, arugula, a sprinkle of Gruyere cheese and diced tomatoes. They are perfect for your next party and are SO GOOD!

Roast Beef Crostini are a favorite appetizer recipe! I recently made them for a holiday cocktail party as a group of neighborhood friends gathered to kickoff the Christmas season. My big tray of these 2 bite roast beef appetizers were a hit! They were gobbled up in no time at all.

Crispy yet soft crostini is topped with a tangy horseradish cream, peppery arugula, thin slices of roast beef, nutty Gruyere cheese and bright red tomato. The combination of flavors is DELICIOUS!

the ingredients for roast beef crostini

• a long baguette or skinny loaf of bread
• extra virgin olive oil
• kosher salt
• sour cream
• mayonnaise
• prepared horseradish ~ Available at the grocery store and usually in the condiment aisle. It's a jar of grated horseradish, vinegar and salt.
• arugula ~ A leafy green with a peppery taste.
• deli roast beef
• shredded Gruyere cheese
• diced tomato

how to make crostini

I struck upon the perfect crostini recipe while sipping wine and nibbling on appetizers at my friend Linda's home. She has the perfect crostini as it's slightly crisp and just a little soft. It is ideal accompaniment to my basil hummus, pimento cheese, creamy New England Clam chowder, and these roast beef crostini.

Here's the crostini details:

• Cut a long thin loaf of bread into 1/2 inch slices.
• Brush with extra virgin olive oil and sprinkle with kosher salt.
• In a hot cast iron skillet (a large sauté pan will work too), quickly toast each side of the bread slices. Flip the bread after a minute or so for the perfect crostini.
• Serve warm or at room temperature.

steps for making roast beef crostini

• Toast the bread ~ In a hot pan, quickly toast slices of a long thin loaf that are brushed with extra virgin olive oil and sprinkled with kosher salt.
• Mix the horseradish cream ~ In a small bowl, combine the sour cream, mayonnaise, and prepared horseradish.
• Assemble the roast beef crostini ~ For each beef appetizer, spread some of the horseradish cream on a crostini. Top with a couple arugula leaves, about a half slice of deli roast beef, another dab of the horseradish cream, some shredded Gruyere cheese and diced tomato.

chef tips for making roast beef crostini

• Use a thin loaf of bread for the crostini ~ for the perfect 2 bite appetizer, choose a loaf of bread that is about 2 to 3 inches in diameter.
• Ask the deli counter to thinly slice the roast beef ~ My first choice for the roast beef is medium rare Boar's Head which is available at most deli counters.
• Substitute your favorite semi hard cheese ~ some tasty choices are pepper jack, Swiss, Gouda and sharp cheddar.
• Make roast beef crostini in advance ~ There's no need for last minute prep for these easy yet fancy appetizers. Make them up to 2 hours in advance. Store in the refrigerator covered lightly with plastic wrap.

more appetizer recipes to try

• Easy Antipasto Skewers
• Everything But the Bagel Chicken Bites
• BLT Bites
• Cucumber Watermelon Appetizers with Blue Cheese
• Crispy Baked Chicken Wings
• Cheeseburger Sliders

just one more thing

If you make Roast Beef Crostini, I’d love hearing from you. Be sure to leave a comment and/or give this recipe a rating ~ I do my best to reply to all your comments. And snap a photo to post to Instagram. I’ll add the photos to my Insta stories as I love seeing all your creations.

Also check out my Facebook and Pinterest pages for lots of fabulous foodie stories, videos, cooking tips, and recipes.

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