In a medium bowl, toss together the carrots, vinegar, olive oil, salt, and pepper.
Lay out the 4 slices of prosciutto. Top each with 1/4 of the carrot mixture. Place a basil leaf on top of each and roll the prosciutto up and around the basil and carrots. Secure the bundles with toothpicks and serve.
Recipe courtesy of Giada De Laurentiis