Anko Azuki Bean Paste Varieties Techniques

Japan — azuki bean paste confectionery since Heian period; refined in wagashi tradition through medieval period

Anko (餡子, bean paste) is the soul of Japanese confectionery — sweetened azuki bean paste in two fundamental forms: tsubu-an (粒餡, whole bean paste, with bean skins intact, textured) and koshi-an (漉し餡, smooth paste, skins removed, fully smooth). Both begin with the same process: soak azuki overnight, boil three times discarding water each time to remove astringency (aku-nuki), then simmer until soft, add sugar, and dry-stir (neri) until the right consistency. The sugar ratio determines final texture — wagashi shops use refined white sugar for brightness; traditional shops use wasanbon (fine Japanese sugar) or brown sugar for depth. Red bean paste quality is determined by its clean sweetness, not cloying or harsh.

Clean sweet bean flavor with subtle earthiness — the pure taste of well-made anko defines Japanese sweet culture