This is my version of my favorite simple soup. I've tried many combinations, and I haven't found anything better than this so far. Miso, Dashi Stock, and Wakame are found in any Asian food store. If you want a darker taste, I happen to like using 3 tbl. of light miso, and 1 tbl. of dark/barley miso (to make up the 4 tbl of miso). It's close but enough to notice a difference.
Ready in 30 mins
