This unusual version of zoni (soup with pounded sticky-rice cakes) features round slices of daikon radish and carrot cooked in a soup prepared from fish broth, along with a mochi cake stuffed with sweetened mashed azuki beans (an-mochi). The soup is seasoned with white miso. The an-mochi tradition dates from the days when sugar was such a luxury that it could only be used on special occasions such as New Year banquets, when zoni soup is served.