Tomato Crostini Recipe: Sun-Dried Tomato and Basil Bites

This tomato crostini recipe transforms humble toasted bread into elegant bites that showcase the bright, complex flavors of sun-dried tomatoes and fresh basil.

The key lies in perfectly crisp toasting the bread and balancing the rich tomato intensity with bright olive oil and fragrant herbs—every bite delivers that perfect harmony of textures and tastes.

I developed this version after years of testing, ensuring the toppings stay vibrant and the bread maintains its ideal crunch.

What sets these crostini apart is the two-stage preparation: first toasting the bread until golden and crisp, then assembling with a foolproof sun-dried tomato mixture that clings beautifully.

The recipe uses simple ingredients—no fancy techniques required—but the results are restaurant-quality, with each bite offering a perfect balance of salty, sweet, and herby notes. The secret weapon? A touch of flaky sea salt at the end to elevate every flavor.

By the time you're done, you'll have a versatile appetizer that works for brunch, cocktails, or as a light main course. The crostini can be made ahead and assembled fresh, making this an ideal make-ahead option for entertaining.

Whether you stick to the classic version or add mozzarella or prosciutto, the foundation remains the same—bright, flavorful, and impossible to resist.

This recipe delivers professional results with minimal effort, proving that even simple dishes can feel special when executed with care. The combination of crisp bread, vibrant toppings, and aromatic herbs creates a dish that's as visually appealing as it is delicious.

Let's get started on these sun-dried tomato and basil bites that will impress every time.

Ingredients for tomato crostini

Bright flavors and crisp textures start with these twelve ingredients—simple yet transformative.

The foundation begins with a day-old baguette—its crusty exterior toasts to perfect golden crispness while the interior remains tender. For optimal texture, avoid freshly baked bread, which can steam instead of crisp. Whole Foods Market and Trader Joe's carry excellent artisan baguettes, but any crusty loaf works. The extra-virgin olive oil should be fruity and high-quality—avoid the cheap supermarket varieties that lack depth. Sun-dried tomatoes in oil should be packed in olive oil, not vinegar, for the best flavor and texture. Drain them thoroughly before chopping to avoid excess moisture in your toppings. Fresh basil is non-negotiable here—dried simply won't deliver the same aromatic punch. Look for vibrant green leaves with no browning or wilting.

No sun-dried tomatoes in oil? Roasted cherry tomatoes work beautifully as a substitute—simply roast them at 400°F (200°C) until caramelized, then blend into a paste. Short on fresh basil? Dried basil at one-third the amount will suffice, though the texture and aroma won't be identical. The garlic should be minced finely—a microplane works wonders for this task. For the optional mozzarella, fresh mozzarella from the deli counter melts beautifully, while pre-shredded varieties often contain anti-caking agents that prevent proper melting. Prosciutto can be swapped for thinly sliced salami or pancetta if preferred. When assembling, use a light hand with the toppings—each crostini should be a harmonious bite, not a heavy one.

Toasted almonds and lemon zest should be prepared fresh for maximum impact—their flavors brighten the rich tomato base. Store the assembled crostini on a wire rack at room temperature for up to 2 hours before serving to maintain crispness. For make-ahead convenience, prepare the sun-dried tomato mixture and store it in an airtight container in the refrigerator for up to 3 days. The bread can be toasted and stored in a sealed container for 1 day, though it's best enjoyed fresh. When ready to assemble, simply toast the bread again to restore its crispness. These crostini reheat beautifully in a 350°F (175°C) oven for 5-7 minutes if needed, though they're typically served at room temperature for optimal texture.

Step-by-step instructions for tomato crostini with sun-dried tomatoes and basil

Transform simple baguette slices into elegant crostini with bold Mediterranean flavors.

Preheat your oven to 375°F and line a baking sheet with parchment paper. Using a serrated knife, cut the 1 whole baguette into ½-inch thick slices—you should get about 12 slices total. Brush both sides of each slice generously with 0.25 cup extra-virgin olive oil, making sure to coat the edges thoroughly. This creates a crisp foundation while preventing the bread from drying out.

Arrange the slices on the prepared baking sheet, spacing them about ½ inch apart to allow for even browning. Bake for 8-10 minutes until the edges are golden brown and the bread feels firm to the touch. Remove from the oven and let cool slightly on a wire rack—this prevents soggy crostini when you add toppings later.

In a food processor, combine the 0.5 cup sun-dried tomatoes in oil (drained and chopped), 0.5 cup fresh basil leaves (stems removed), 2 cloves minced garlic, and 1 tsp lemon zest. Pulse until finely chopped but still slightly textured—you want visible flecks of tomato and basil, not a smooth paste. With the processor running, slowly drizzle in 2 tablespoons of the extra-virgin olive oil remaining from your earlier step, then add 0.25 cup freshly grated parmesan cheese.

Pulse again until fully incorporated, then transfer to a small bowl. Taste and adjust seasoning with 0.25 tsp freshly cracked black pepper and a pinch of flaky sea salt if needed. The pesto should be vibrant, with a balance of tangy tomato, bright basil, and nutty parmesan. Set aside while you prepare the optional protein toppings.

Spread about 1 teaspoon of the sun-dried tomato pesto onto each cooled crostini slice, pressing gently to adhere. For the optional protein layer, place a thin slice of mozzarella cheese (about ½ ounce per crostini) on half the slices, then top with a slice of prosciutto. Return these to the oven for 2-3 minutes at 375°F just to melt the cheese slightly—this creates a luxurious, gooey contrast to the crisp bread.

For the remaining crostini, simply top with another teaspoon of pesto, a sprinkle of 0.25 cup toasted almonds, and a drizzle of 1 tbsp balsamic glaze. The almonds add crunch while the balsamic glaze ties all the flavors together with its sweet-tart complexity. Work quickly to prevent the crostini from becoming soggy.

Once all crostini are assembled, let them rest for 1-2 minutes to allow the flavors to meld. Finish each bite with a final sprinkle of flaky sea salt and a few torn fresh basil leaves for color and aroma. Serve immediately while the bread is still crisp and the toppings are vibrant—these crostini are best enjoyed fresh from the oven.

Arrange on a platter with a drizzle of extra balsamic glaze around the edges for presentation. The contrast of crispy bread, creamy cheese, salty prosciutto, and bright pesto creates a perfect balance of textures and flavors that makes these crostini ideal for appetizers or light meals.

Flavor customization for this dish

Sweet-Tart Balance

Add 1 tbsp balsamic reduction to your sun-dried tomato mixture for a sweet-tart contrast that elevates the dish. I recommend reducing 2 tbsp balsamic vinegar with 1 tsp honey> in a small saucepan until syrupy—about 3-4 minutes on medium heat.