Japchae is a dish of stir-fried noodles with vegetables and meat. It's one of the most popular dishes in Korea and can be served hot or cold. All the different components of this colourful and tasty dish can be assembled at the last minute. With sweet potato noodles glistening with sesame oil, sugar and soy, topped with vegetables and meat, japchae is great for entertaining or a special occasion.Japchae is a dish of stir-fried noodles with vegetables and meat. It's one of the most popular dishes in Korea and can be served hot or cold. All the different components of this colourful and tasty dish can be assembled at the last minute. With sweet potato noodles glistening with sesame oil, sugar and soy, topped with vegetables and meat, japchae is great for entertaining or a special occasion.