Elevate your appetizer game with our delectable Beef Crostini featuring the perfect balance of flavors and textures. Crisp French baguette slices topped with melt-in-your-mouth roast beef, savory caramelized onions, and creamy Swiss cheese, all finished with a zesty horseradish aioli. This sophisticated yet approachable dish is sure to impress your guests at any gathering, from casual get-togethers to elegant soirées. Get ready to indulge in a symphony of flavors that will leave your taste buds craving for more!
In our household, the arrival of guests always calls for something extraordinary, and our Beef Crostini with Caramelized Onions and Horseradish Aioli never fails to steal the show. It all begins with the slow caramelization of onions, a labor of love that fills the kitchen with an irresistible aroma. As the onions transform into golden perfection, anticipation builds, setting the stage for a culinary masterpiece. Meanwhile, the baguette slices are lovingly brushed with olive oil and seasoned to perfection, ready to serve as the canvas for our savory creation. When the time comes to assemble the crostini, each layer is carefully curated, from the tender slices of roast beef to the decadent Swiss cheese. Finally, a dollop of horseradish aioli adds a burst of flavor, elevating the dish to new heights of deliciousness. As we gather around the table, the first bite is met with a chorus of satisfied murmurs and delighted smiles, a testament to the magic of good food and great company.
Why This Recipe Is a Must-Try:
- Perfect balance of savory and zesty flavors, guaranteed to tantalize your taste buds.
- Slow-caramelized onions impart a rich, sweet flavor that complements the savory beef and creamy cheese.
- Crisp crostini base adds a delightful crunch to each bite, providing the perfect contrast to the tender beef and melted cheese.
- Horseradish aioli lends a zesty kick, elevating the dish with its bold and tangy flavor profile.
- Versatile appetizer suitable for any occasion, from casual gatherings to formal dinner parties.
- Quick and easy to prepare, allowing you to spend less time in the kitchen and more time enjoying the company of your guests.
- Beautifully garnished with julienned basil for a fresh and vibrant touch.
Ingredients:
- 1 French baguette
- 2 yellow onions
- 227 grams (8 oz) sliced Swiss cheese
- 454 grams (1 lb) roast beef or beef tenderloin
- 113 grams (4 oz) horseradish aioli*
- 4 tablespoons olive oil
- Salt and pepper to taste
- Basil, for garnish
Instructions:
- Heat 2 tablespoons of olive oil in a sauté pan over medium-low heat. Add the sliced onions and cook low and slow for 30-40 minutes until the onions are caramelized, stirring occasionally.
- While the onions are caramelizing, preheat your oven to 400°F (200°C). Slice the baguette into twenty-four 1/2-inch wide slices and lay them flat on an oiled cookie sheet. Brush the top of each crostini with olive oil and sprinkle with salt and pepper. Bake for 5 minutes until lightly toasted.
- Remove the crostini from the oven. Slice the Swiss cheese into pieces that just cover each crostini. Top each crostini with sliced beef and Swiss cheese. Return the crostini to the oven for another 5 minutes or until the cheese has melted.
- Top each crostini with a pinch of caramelized onions, a drizzle of horseradish aioli, and a sprinkle of julienned basil.
- Serve the Beef Crostini with Caramelized Onions and Horseradish Aioli immediately and watch them disappear!
Notes: *You can use store-bought horseradish aioli or make your own by combining mayonnaise with prepared horseradish to taste. Adjust the amount of horseradish according to your preference for spice.
