Preheat oven to 200 degrees. Core, halve, and remove the seeds from the tomatoes, and add them to a large bowl. Toss the tomatoes with the salt, pepper, and balsamic vinegar. Lay the tomatoes on a baking sheet covered with parchment paper skin side down. Cook tomatoes for 9 hours until wilted and resemble a sun-dried tomato.
Recipe courtesy of The Food Network