Add the water to a medium pot, cover, and set over high heat. Meanwhile, gather your ingredients. Add the miso paste, chicken bouillon paste, and Hondashi powder to the pot. Bring to a boil.
While the broth cooks, cut your tofu into cubes. (½-inch/1cm cubes are a good place to start, but cut them however you like!)
Give the broth a stir to make sure the miso is evenly distributed. Add the tofu, and simmer for another 5 minutes or so.
While that’s happening, chop the scallions. (If you’re like us, and you have some already chopped and frozen, you can skip this step.) Lightly beat the eggs in a small bowl. Add the wakame seaweed.
With the soup at a low simmer, pour in the egg in a circular pattern. Don’t stir the soup, and don’t let it come up to a high simmer/boil. Add the scallions, give everything a stir, and serve!