1 liter of cold water
10 g of dried kombu strips
Soak kombu in the cold water for 30 min. Slowly heat up the water and remove kombu just before it starts to boil.
Kombu stripes can be cut into the soup or used to make seaweed salad flavored with e.g. sesame oil, rice vinegar, sugar, tahini and coriander.
Seaweed is a natural product and can contain traces of crustaceans.