Appetizers & Starters > Canapés & Crostini > Seafood Canapés > Tuna Tartare on Toast

Tuna Tartare Crostini with Avocado Cream

A vibrant and flavorful appetizer featuring fresh tuna tartare served atop crispy crostini, complemented by a creamy avocado topping. Perfect for parties or elegant gatherings.

Prep Time
25 minutes
Cook Time
10 minutes
Servings
12-16 crostini
Ingredients
  • 8 oz Fresh Tuna (sushi-grade)
  • 2 Avocado
  • 1/4 Red Onion
  • 2 tablespoons Fresh Lime Juice
  • 1 tablespoon Soy Sauce
  • 1 teaspoon Sesame Oil
  • 2 tablespoons Cilantro
  • to taste Salt
  • to taste Black Pepper
  • 1 Baguette
  • 2 tablespoons Olive Oil
  • 1 Garlic Clove
  • to taste Sriracha (optional)

Prepare the Crostini

Preheat oven to 375°F (190°C). Slice the baguette into ½-inch thick rounds. Brush both sides of the baguette slices with olive oil. Rub the garlic clove over one side of each slice. Arrange the slices on a baking sheet and bake for 8-10 minutes, or until golden brown and crispy. Let cool completely.

Make the Avocado Cream

In a small bowl, mash the avocado with a fork until smooth. Add 1 tablespoon of lime juice, salt, and pepper to taste. Mix well and set aside.

Prepare the Tuna Tartare

Finely dice the fresh tuna and red onion. In a medium bowl, combine the diced tuna, red onion, remaining 1 tablespoon of lime juice, soy sauce, sesame oil, chopped cilantro, salt, pepper, and sriracha (if using). Gently mix until well combined. Be careful not to overmix.

Assemble the Crostini

Spread a thin layer of avocado cream on each cooled crostini. Top with a generous spoonful of tuna tartare. Garnish with extra cilantro or a sprinkle of sesame seeds, if desired. Serve immediately.

← Spicy Tuna and Olive Crostini Whipped Feta Tomato Bruschetta →

FAQ

  • Can I use frozen tuna?

    No, for tuna tartare, it is essential to use fresh, sushi-grade tuna to ensure safety and quality.
  • How long can I store the tuna tartare?

    Tuna tartare is best served immediately. If you need to prepare it in advance, keep it refrigerated for no more than 2 hours.
  • Can I make the crostini ahead of time?

    Yes, you can make the crostini a day ahead and store them in an airtight container at room temperature. Just be sure they are completely cooled before storing to maintain their crispness.