Overview

The adzuki bean (Vigna angularis) is a small annual legume grown throughout East Asia and the Himalayas. The most familiar cultivars have a uniform red color, though white, black, gray, and mottled varieties exist. The bean has a mild, sweet, nutty flavor and a soft, starchy texture when cooked.

Origin and history

The adzuki bean was domesticated in East Asia, with scientists presuming Vigna angularis var. nipponensis as the wild progenitor [1]. It has been cultivated for thousands of years across China, Japan, Korea, and parts of the Himalayas. The bean spread through trade routes and remains a staple legume in East Asian cuisines, particularly in sweet preparations.

Varieties and aliases

  • Red adzuki bean (most common, uniform red color)
  • White adzuki bean
  • Black adzuki bean
  • Gray adzuki bean
  • Mottled varieties
  • Also spelled azuki or aduki

Culinary uses

Adzuki beans are most commonly boiled and sweetened to form a paste (anko in Japanese, pat in Korean) used as a filling for pastries, dumplings, and desserts. The beans can also be cooked whole in savory soups or rice dishes.

Cross-cuisine context

Adzuki beans are a staple legume in East Asian cuisines, often used in sweet preparations. Other culinary traditions, such as Mexican cuisine, rely on different legume types (e.g., black, pinto, kidney beans). Small legumes such as mung beans (Vigna radiata) appear in both sweet and savory dishes across Asia; their flavor and texture differ from adzuki beans.

Notes for cooks

  • Dried adzuki beans do not require soaking before cooking, though a brief soak can reduce cooking time. Simmer until tender, about 45 to 60 minutes.
  • Sweetened adzuki paste can be stored refrigerated for up to a week or frozen for several months.
  • The beans have a thin skin that may split during cooking; this is normal and does not affect texture or flavor.