Beat an egg, boil, add NINBEN and a pinch of salt, then, it's done. You may choose your own favorite vegetables for this, onion and carrot as shown in this video, besides, radish, eggplant, green beans, sliced potato, pumpkin, spinach, beansprout, some kind of mushroom/s, canned fish (some drops of grated ginger fluid recommended), tofu, Wakame seaweeds, oriental garlic chive, chunk or minced chicken, dropped egg instead, etc., etc.. This soup is quite handy to busy Japanese-food lovers in the morning to prepare. Soooo easy!!!