Ganjang gejang is a traditional Korean dish made from raw crabs marinated in a soy sauce-based mixture. The crabs are typically blue crabs, and the marinade often includes ingredients like garlic, ginger, and sesame oil, which enhance the flavor. This dish is known for its rich umami taste and is often served with rice. The preparation of ganjang gejang involves cleaning the crabs and soaking them in the marinade for several hours or overnight. It is commonly enjoyed as a side dish or an accompaniment to a meal, and it is particularly popular in coastal regions of South Korea.