Caprese Sandwiches with Crispy Prosciutto and Caramelized Onions

I am a huge fan of BLT sandwiches (my mom makes them best), so I decided to go for a twist on the classic by adding some Italian flavor. The tomatoes really make or break any sandwich in my opinion, so make sure you get the good stuff! Keep this recipe in mind for the next time your garden is overflowing with fresh tomatoes… And call me so I can share them with you! 🙂 IMG_7614The tomatoes may be the star of the show, but the pile of fresh basil leaves I had in my kitchen gave the tomatoes a run for their money. I can practically smell it right now… IMG_7620This sandwich is like a BLT and a fresh Caprese salad all squished into one toasty lunch, and it is soooo tasty! I swapped out bacon for crispy prosciutto, lettuce for fresh basil, and used the juiciest heirloom tomatoes of all time.IMG_7619But then I was thinking, why stop there? So I decided to add some freshly sliced mozzarella cheese and warm, caramelized onions.IMG_7621I layered all the goods on toasted bread with a smear of mayo and a drizzle of balsamic vinegar, and yeah, it turned out pretty epic.IMG_7622Ugh now I want one right now!IMG_7626Even my husband Brad (who hates both bacon [gasp!] and onions) enjoyed it. IMG_7624It’s a simple, delicious lunch, and I highly recommend you try it out! Now get cookin good lookin!

Caprese Sandwiches with Crispy Prosciutto and Caramelized Onions

  • Servings: 2
  • Difficulty: easy
  • Print

A BLT with a fancy twist!



  • Toasted bread of choice (I used whole grain sourdough)
  • Mayonaise
  • 1/2 onion, caramelized
  • 4-5 slices prosciutto, cooked until crispy
  • 2-4 tomatoes, sliced
  • Fresh basil
  • Fresh mozzarella slices
  • Balsamic vinegar


  1. Caramelize 1/2 an onion over medium heat until it reaches desired doneness. Cook the prosciutto over the stove or in the microwave until crisp, then drain excess grease on a paper towel. Toast bread of choice.
  2. Spread mayo on toasted bread, then layer onions, prosciutto, basil, and sliced mozzarella and tomatoes. Drizzle with balsamic vinegar, and enjoy!


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