Rinse 1 geun (approx. 600g) of seaweed (Hijiki) in water and soak in vinegar water for 20 minutes.
Blanch briefly in boiling water.
Cut a handful of seaweed into bite-sized pieces.
Mash half a block of tofu.
Use a cloth to squeeze out excess water from the tofu.
In a bowl with the seaweed and tofu, add half a spoon of salt, 1 spoon of soy sauce, and 1 spoon of perilla oil. Mix everything together well.