Jjajangmyeon is a popular Korean-Chinese dish that consists of noodles topped with a thick black bean sauce. The sauce is made from fermented black soybeans, onions, and other ingredients. Jjajangmyeon is often garnished with diced vegetables and sometimes with meat or seafood. It has a rich and savory flavor that is both comforting and satisfying. Jjajangmyeon is a popular takeout dish in Seoul and is often enjoyed as a quick and delicious meal.