Slice the spring onion very thinly, cut the Tofu into small pieces.
Pour the dashi into the saucepan and bring to a rapid simmer over medium-high heat.
Add the Tofu in the saucepan.
Put the miso in saucepan and whisk with chopsticks until the miso is entirely dissolved in the dashi soup.
Finally put the spring onions in the saucepan.
Check the taste.
Serve in individual bowl and enjoy it