Mitsumame

In a saucepan, combine Kanten powder and Water for kanten. Let the Kanten powder soak for 10 minutes.

Heat the saucepan over medium heat, stirring constantly until the Kanten powder is completely dissolved. Bring to a gentle boil for 1 minute.

Pour the kanten mixture into a shallow rectangular mold or container. Allow it to cool at room temperature, then refrigerate for at least 1 hour until firm.