Serves 4 8 bundles dried somen (2 bundles per person, depending on appetite) Ice cubes Tsuyu, for serving (store-bought or homemade, recipe follows) Toppings: grated ginger, chopped scallions (or Japanese negi), sliced myoga (Japanese ginger), julienned cucumbers, citrus supremes, julienned shiso leaves, shredded egg omelette, sliced ham or fishcakes, etc. Bring a large pot of…