장아찌 is a traditional Korean side dish made by pickling various vegetables, such as cucumbers, radishes, or garlic, in a mixture of soy sauce, vinegar, and spices. This process enhances the flavor and preserves the vegetables, making them a popular accompaniment to rice and other dishes. The pickling process can vary, with some recipes using sugar for sweetness or adding chili for spiciness. 장아찌 is not only enjoyed for its taste but also for its health benefits, as it provides probiotics and essential nutrients from the vegetables.