Japchae is a popular Korean dish made from sweet potato starch noodles, known as dangmyeon. The noodles are stir-fried with a variety of vegetables, such as carrots, spinach, and mushrooms, and often include beef or other proteins. The dish is seasoned with soy sauce, sesame oil, and sugar, giving it a unique sweet and savory flavor. Traditionally served as a side dish or during special occasions, japchae is enjoyed for its chewy texture and colorful presentation. It can be served hot or cold, making it a versatile option for any meal.