Hazırlanışı
1Steep 10 g kombu in 1000 g cold water for at least 30 minutes, then heat gently and remove just before boiling.
2Add 30 g mirin, 30 g sake, and 2 g salt to the kombu broth, then bring to a simmer.
3Add 50 g koikuchi soy sauce to the broth and simmer gently.