Korean Jelly Salad is a refreshing and colorful dish made with agar agar jelly, vegetables, and a tangy dressing. The jelly is made by boiling agar agar powder with water and then setting it in a mold. Once set, it is cut into cubes and mixed with a variety of vegetables like cucumber, carrot, and bell pepper. The salad is then dressed with a mixture of vinegar, soy sauce, sugar, and sesame oil, giving it a delicious sweet and sour flavor.