英語で： Most modern Japanese would, of course, just go to a konbini and buy some packets of instant soup. The alternative, however, does not really take that much more time.
First one makes a dashi (stock), like for the miso soup. This time, in a concession to convenience, I am using a packet of konbu (kelp) and katsuobushi (bonito flakes).
6 minutes boiling:
After raiding the cupboard, I decided to use:
Pour the hot dashi in the mugs, wait for a few minutes, add soy sause to taste.