ترشی (Sour) refers to a category of foods that have a tangy or acidic flavor, often achieved through fermentation or the addition of vinegar. Common examples include pickled vegetables, fruits, and sauces. This flavor profile is popular in many cuisines around the world, enhancing dishes with a refreshing contrast. In culinary traditions, ترشی is often used as a condiment or side dish, complementing rich or fatty foods. It can also serve as a preservative, extending the shelf life of seasonal produce. Popular varieties include pickled cucumbers, sauerkraut, and kimchi, each offering unique tastes and health benefits.