Konbu-Cha Tea is tea made from seaweed, either from whole kombu (aka konbu) seaweed, or powdered seaweed available in stores.
It has a salty taste.
Sometimes shiso leaves are added to the mix.
You can also use it as a broth for soup.
To make from scratch, simmer a piece of kombu seaweed in 1 litre / 1 quart / 4 cups of water for 15 minutes.
Serve with a small piece of kombu seaweed at the bottom of the cup.
Sometimes spellt “Kombucha” but kombucha has come to mean when used by English speakers a fermented tea.