To make the dashi, clean off the kombu gently with a wet paper towel but don’t take the white stuff off!
Soak the kombu in water for 30 minutes up to overnight, and when it’s done, put it in a pot with 4 cups of water.
Bring it a soft boil over medium-low heat, and right as it starts to boil, take the kombu out and put in the bonito flakes.
Keep the heat on for 30-60 seconds, then turn it off and let the bonito flakes steep for 10 minutes.
Strain it and that’s your kombu!
For the miso, use 2 cups of the dashi to a pot and put in the tofu, seaweed, and scallions just to get everything up over medium heat for a few minutes.
Once the soup is hot, take it off the heat and add in the miso paste. You don’t want it boiling or the miso won’t taste as good.