Oden (おでん) is a Japanese winter dish consisting of several ingredients such as boiled eggs, daikon radish, konnyaku, and processed fish cakes stewed in a light, soy-flavoured dashi broth. Ingredients vary according to region and between each household. Karashi (Japanese mustard) is often used as a condiment.
Oden was originally what is now commonly called misodengaku or simply dengaku; konnyaku or tofu was boiled and one ate them with miso. Later, instead of using miso, ingredients were cooked in dashi and oden became popular.
Unlike most one pot dishes, ingredients can be added at any time. Oden is often sold from food carts, and most Japanese convenience stores have simmering oden pots in winter. Many different kinds of oden are sold, with single-ingredient varieties as cheap as 50 yen.