This Steak Crostini recipe is a delicious, savory appetizer with seasoned top sirloin steak cooked in a sous vide or grilled, then sliced and served atop a crispy baguette with creamy horseradish goat cheese. The steak crostini is finished with a drizzle of balsamic glaze and fresh basil for an incredibly flavorful snack, side dish or appetizer.
If you don’t have a vacuum sealer, you can use a gallon size freezer-safe zipper bag and the water displacement method. To do so, you’ll need to place the bag of steaks almost all of the way under water, leaving just about an inch of the top of the bag open. The water will press out all of the air around the food in the bag. You can then seal the bag closed.
Place the sealed bag of steak in a large pot, or container, filled with water. If properly sealed, the steak should sink in the water. You want to make sure that the steak is completely submerged in the water for proper sous vide cooking.
Attach a sous vide to the pot and set the temperature to 131°F for medium-rare steak. Set a timer for 4-8 hours
After 4-8 hours, remove the bag of steaks from the water. Cut the bag open and use tongs to remove the steaks from the bag.
If using a grill to sear the steaks, they can go directly on the grill. If using a cast iron skillet to sear the steaks, I recommend you pat them dry first with paper towels.
Make sure the grill or pan is very hot before adding the steaks. You only want to cook them for 30-60 seconds on each side to sear the outside of the steak.
Move to a cutting board and allow to rest for 10 minutes.
While the steak is resting, heat the oven to 375°F.
Slice the baguette and place the slices on a baking sheet.
Spray the slices of bread with the olive oil cooking spray and place them in the oven for 3-5 minutes to lightly toast.
Remove from the oven and set aside.
In a small bowl, combine the goat cheese and horseradish cream, set aside.
Slice the steak very thin.
Spread the goat cheese and horseradish cream mixture on the sliced baguette.
Top with the thinly sliced top sirloin, then drizzle with the balsamic reduction and top with fresh chopped basil.
Notes
Instead of cooking the steak in a sous vide, cook it on a grill. Use this popular recipe for marinated grilled sirloin steaks. Grill the steaks until they reach an internal temperature of 130-135°F. Rest the steaks for 10 minutes after they come off the grill. Thinly slice the steaks and follow the crostini recipe as directed.
You can use other cuts of steak to make this recipe. A filet mignon is another great choice to make tender, flavorful meat for this steak crostini.
You can replace the goat cheese and horseradish cream with blue cheese. Combine 8 ounces blue cheese with 2 tablespoons blue cheese dressing to make a spread for the crostini.