Sun-dried tomatoes are ripe tomatoes that have been dried in the sun or through other drying methods. This process removes most of the moisture, concentrating their flavor and sweetness. They are often used in various dishes, such as salads, pastas, and pizzas, adding a rich, tangy taste. These tomatoes can be found in both whole and chopped forms, and they are typically packed in oil or stored dry. Sun-dried tomatoes are a popular ingredient in Mediterranean cuisine and are known for their long shelf life, making them a convenient pantry staple for many cooks.