Hiyamugi noodles are similar to somen and are usually served cold with a dashi and soy dressing, some shiso and very little else. Here we've thrown in some pickles. In this instance, we've used organic ginger because it's so tender. You'll need to begin this recipe two weeks ahead if you're making the pickles or you could buy good-quality pickles from a Japanese grocer.
Note Hiyamugi are thin wheat-based noodles available from Japanese grocers. If unavailable, substitute somen or soba. Shiso, also known as perilla, is a peppery flavoured herb available from Japanese grocers or select greengrocers. Rice bran flour, kombu and bonito flakes are all available from Japanese grocers. Shoyu is a type of Japanese soy sauce, available from Japanese grocers. If unavailable, substitute light soy sauce.