Beef crostini appetizer is made with seared beef tenderloin, a creamy mascarpone sauce topped with fresh basil on top of a crunchy toasted baguette.
Beef crostini with mascarpone sauce looks fancy but is very easy and simple to quickly put together for family and guests. They taste so good your guests will be going back for seconds and thirds.
I also use the same seasonings from this recipe in my post how to cook a filet mignon if you are in the mood for a bigger portion at dinner.
What is beef crostini?
Crostini is Italian for “little crusts” that are grilled or baked. In this case, they are also topped with beef tenderloin.
What is mascarpone cheese?
Mascarpone cheese is Italian cream cheese with higher fat content, but less thick compared to American cream cheese. It’s used the same way Americans use their cream cheese – for bagels and toast, but Italians also use it for desserts like tiramisu.
You can find mascarpone in US grocery stores by the cheese or cream cheese in a small tub. Sometimes I see it with the blocks of Parmesan/Romano cheeses at the deli counter.
Substitute For Creamy Mascarpone Cheese
If you are unable to find mascarpone cheese, try substituting with the following options:
- Blend 8 ounces of softened cream cheese with ¼ cup whipping cream
- Blend 8 ounces of softened cream cheese with ⅛ cup whipping cream and ⅛ cup sour cream
Ingredients for Beef Crostini with Mascarpone Sauce
- French Baguette
- Beef Tenderloins (Filet Mignon Steaks)
- Olive Oil
- Salt
- Black Pepper
- Cumin
- Coriander
- Minced Garlic
- Mayonnaise
- Mascarpone Cheese
- Fresh Basil
- Paprika
- Slice the baguette into ¼-inch slices. Add the slices to a sheet pan.
- Toast the bread by brushing them with olive oil, sprinkling a little bit of salt, and baking them at 400 degrees Fahrenheit for 10 minutes. Set aside. You’ll need the oven again for this next step.
- In a bowl, combine salt, black pepper, garlic, cumin, and coriander. Coat all sides of the beef tenderloins with spices.
- In a medium-sized pan heat 2 teaspoons of olive oil over medium-high heat. Once hot, add the beef tenderloins and cooked for 2 minutes on each side. Place the beef tenderloins on a baking sheet and bake at 400 degrees Fahrenheit for 10 minutes.
- Remove the steak from the oven and allow it to rest for 10 minutes before slicing it into ¼″ thick slices against the grain.
- While it cooks, prepare the sauce. The sauce is really easy to whip together in a small bowl. Mix together mayonnaise, mascarpone, basil, paprika, ½ teaspoon salt, and ¼ teaspoon black pepper.
- Spread ½ teaspoon of sauce over each slice of bread, add a slice of steak on top of the sauce, and top with another ¼ teaspoon of sauce on top of the steak Top each crostini with chopped basil. Serve immediately.
Recommended Recipes
- Bruschetta with Tomato and Basil
- Grilled Beef Tenderloin Roast Recipe with a Fresh Herb Crust
- Juicy Air Fryer Steak
- Spicy Honey Prosciutto Flatbread
Beef Crostini with Mascarpone Sauce
Ingredients
- Baguette, ¼″ slices
Beef Tenderloin
- 2-5 oz Beef Tenderloins, Filet Mignon Steaks
- Olive Oil
- ½ teaspoon Salt
- ¼ teaspoon Black Pepper
- ½ teaspoon Cumin
- ½ teaspoon Coriander
- ½ teaspoon Minced Garlic
Sauce
- ½ cup Mayonnaise
- 2 tablespoon Mascarpone Cheese
- 2 tablespoon Chopped Fresh Basil
- ½ teaspoon Paprika
- ½ teaspoon Salt
- ¼ teaspoon Black Pepper
Instructions
- Preheat oven to 400 degrees Fahrenheit. Place bread slices on baking pan and drizzle or brush with olive oil and season lightly with salt. Bake for about 10 minutes until lightly golden brown.
- In a bowl, combine salt, black pepper, garlic, cumin, and coriander. Coat beef tenderloins with spices. In a medium-sized pan heat 2 teaspoons olive oil over medium-high heat. Once hot, add beef tenderloins and cooked for 2 minutes on each side. Place beef tenderloins on a baking sheet and bake at 400 degrees Fahrenheit for 10 minutes.
- Remove the steak from the oven and allow to rest for 10 minutes before slicing into ¼" thick slices against the grain.
- Prepare the sauce by blending mayonnaise, mascarpone, basil, paprika, ½ teaspoon salt, and ¼ teaspoon black pepper in a bowl.
- Spread ½ teaspoon of sauce over each slice of bread, place a slice of beef on top of the sauce, and top with another ¼ teaspoon of sauce on top of beef. Top each crostini with fresh basil.
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