Full recipe by @ericjoonho 1 (5-inch) square kombu (dried kelp) 1 tablespoon sake 1 tablespoon mirin 5 grams wakame (dried seaweed), crushed (¼ cup) 2 cups loosely packed katsuobushi (often labeled “bonito flakes”) 1 (14-ounce) package silken tofu, drained ¼ cup miso (white or red; see Tip), plus more to taste 1 large scallion, thinly sliced Step 1 Make dashi, the soup base, by soaking kombu in 4 cups cold water for 15 minutes in a medium pot. Add the sake and mirin and bring to a simmer over hi