Laoje Daewang Castella Sinbanghwa is a specialty shop in Seoul that bakes Taiwanese castella near Bangsin Traditional Market in Banghwa-dong. It offers original, fresh cream, cheese, chocolate, and green tea castella, along with a rice castella made from 100% Korean rice and organic wheat flour. Menu items can sell out early, so reserving the castella you want before visiting is better. The fresh cream castella is hard to find.