Caprese Sandwich With Prosciutto & Pistachio Pesto

A crusty ciabatta loaded with creamy fresh mozzarella, salty prosciutto di Parma, and a vibrant, homemade pistachio pesto that will ruin basic sandwiches for you forever.

Why This Recipe Works:

• Salting the tomatoes draws out excess water, preventing a soggy sandwich.
• Pistachios add a rich, buttery fat profile to the pesto that balances the salty prosciutto.
• Toasting the ciabatta creates a sturdy crust that holds up to the juicy mozzarella.

I still remember the afternoon my cheap food processor died trying to grind raw pistachios.

My kitchen smelled like burnt plastic, and my forearms ached from trying to salvage the nuts with a dull chef's knife. The resulting paste was a gritty, depressing mess. I almost threw the whole loaf of ciabatta out the window.

Most caprese sandwiches suffer from a watery, bland fate. Store-bought pesto brands failed every single test because they use cheap canola oil.

Bear with me here, but we are salting our heirloom tomatoes with Diamond Crystal kosher salt (use 1 teaspoon or about 3 grams) to draw out excess moisture. This concentrates the tomato's natural sugars. At the same time, we are whipping up a quick pistachio pesto that clings to the bread. It uses real extra virgin olive oil to carry those oil-soluble flavor compounds straight to your brain.

Trust me, this small step changes everything.

Caprese Sandwich With Prosciutto & Pistachio Pesto

• Publisher Storied Skillet
• Cuisine Italian
• Category Lunch, Sandwiches
• Prep Time 15 mins
• Cook Time 5 mins
• Servings 2
• Calories 680 calories
• Rating 4.8 3422
• Tags Caprese, Prosciutto, Pistachio Pesto, Italian Sandwich

Ingredients

• 1 large ciabatta loaf, split lengthwise
• 4 oz prosciutto di Parma, thinly sliced
• 8 oz fresh mozzarella cheese, sliced
• 2 medium heirloom tomatoes, sliced
• 1 tsp Diamond Crystal kosher salt (for salting tomatoes)
• 1/2 cup shelled pistachios, toasted
• 2 cups fresh basil leaves, packed
• 1/3 cup Parmigiano-Reggiano, grated
• 1 garlic clove
• 1/2 cup extra virgin olive oil
• 1 tbsp fresh lemon juice
• Freshly cracked black pepper

Directions

1. Slice the heirloom tomatoes into 1/4-inch thick rounds. Place them on a paper towel-lined plate and sprinkle with Diamond Crystal kosher salt. Let sit for 10 minutes to draw out excess moisture.
2. In a food processor, combine the toasted pistachios, fresh basil, Parmigiano-Reggiano, garlic, and lemon juice. Pulse until coarsely chopped.
3. With the motor running, slowly drizzle in the extra virgin olive oil until a thick, vibrant pesto forms. Season with black pepper to taste.
4. Toast the split ciabatta loaf under the broiler for 2 to 3 minutes until the edges are golden brown and crisp.
5. Spread a generous layer of the pistachio pesto on both cut sides of the toasted ciabatta.
6. Layer the bottom half of the bread with the salted tomato slices, followed by the fresh mozzarella, and then drape the prosciutto slices on top.
7. Close the sandwich with the top half of the ciabatta, press down gently to compact the layers, and slice into individual portions.

Notes

• Always use Diamond Crystal kosher salt; if you only have Morton's, cut the volume in half (use 1/2 teaspoon instead of 1) to avoid over-salting.
• Salting the tomatoes triggers osmosis, drawing out water so the juices don't break down the gluten structure of your bread and make it soggy.
• Watch your bread like a hawk under the broiler. Ciabatta goes from perfectly toasted to charred charcoal in a matter of fifteen seconds.
• The pistachio pesto will oxidize and turn a dull brown if exposed to air; press plastic wrap directly onto its surface before storing in the fridge.
• If you love this flavor profile, you can also try our Eggplant & Burrata Caprese Sandwich for a vegetarian twist.

Serving Suggestions

This sandwich is a masterpiece on its own, but you can easily round it out for a gorgeous summer lunch or picnic spread with these perfect pairings:

• Pair it with a crisp, refreshing Watermelon Feta Salad to balance the rich, salty prosciutto.
• Serve alongside a bowl of crunchy potato chips or sea salt kettle chips.
• Pour a cold glass of dry Italian white wine, like a Pinot Grigio or Vermentino.
• Add a side of marinated olives and artichoke hearts for a full antipasto experience.
• If you want a warm side, try these crispy Garlic Parmesan Potato Wedges.

Storage and Reheating

Eat this sandwich immediately.

Fresh mozzarella has a high water content that will inevitably migrate into the bread over time. If you must make it ahead, wrap it tightly in parchment paper and eat it within four hours.

Leftover pesto keeps in the fridge for five days. Just cover it with a thin layer of olive oil.

Do not attempt to freeze the assembled sandwich, as the fresh cheese and tomatoes will turn into a mushy, unappealing disaster upon thawing. However, you can freeze the pesto in ice cube trays for up to three months, then pop them out whenever you need a quick flavor boost for a Pesto Grilled Cheese.

It reheats beautifully that way.

Ingredient Substitutes

If you need to make some adjustments based on what is in your pantry, here are the best swaps that won't ruin the sandwich:

1. Ciabatta: Swap for a sturdy French baguette or a rustic sourdough loaf. Avoid soft sandwich bread, which will collapse under the weight of the ingredients.
2. Pistachios: Walnuts or traditional pine nuts work beautifully in the pesto. If you have a nut allergy, toasted sunflower seeds are a fantastic alternative.
3. Prosciutto: If you want a different savory meat, try crispy bacon. For inspiration on getting it perfectly crispy, check out our guide on the BEST Bacon Sandwich.
4. Fresh Mozzarella: Creamy burrata is an incredible, decadent upgrade. Just be prepared for a slightly messier eating experience!
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Let me know if you make this, and please tell me you didn't burn your bread under the broiler! Tap your tongs against your hip, take a deep breath, and enjoy every single bite of this Italian masterpiece.