As L. angustata cooks tender quickly, it is suitable for such dishes as kobu maki (a kelp roll), tsukudani (konbu boiled in sweetened soy sauce) and oden (a Japanese pot-au-feu) in which people can eat kelp itself.
早く煮え、非常に柔らかくなるので、昆布巻き、佃煮、おでん種など、昆布そのものを食べる料理に適している。