1 cup rolled oats
2 cups water
2 teaspoons light miso (see note below)
Cook oatmeal in the evening 5-10 min., or until water is absorbed. (Do not use salt in the cooking.) Let oatmeal cool down to body temperature and then stir miso thoroughly into the warm cereal. Cover and let sit overnight at room temperature (about 70°). Reheat in the morning (without boiling) and serve.
Without imparting a noticeable taste of its own, the enzymatic power of the miso will liquefy the cereal, unlocking its essential nutrition, creating a wholesome sweet taste as it ferments overnight.
Other whole, rolled, cracked, or ground, cereal grains may be used, although cooking times will vary as necessary. Many pre-industrialized peoples fermented their grains to gain the most energy and nutritional strength from them.