On hot days one of my favorite things to eat is Cold Soba dipped in Tsuyu, a sauce made of 3/4 dashi broth and 1/4 reduced soy sauce and mirin. It's been a cold summer so far, so this had to become a soup instead.
Noodles should be added to each individual bowl to avoid them from overcooking in the broth. —driftingkitchen
Mushroom-based Vegetable Broth
Soy Sauce heated and cooled with 2 tbs of Mirin