From the producer:
Used in both sweet and savory dishes, anko is a versatile ingredient made from red beans, water, and sugar. Now you can save yourself the trouble of making your own red bean paste and use this premium Tsubuan. This style of red bean paste is made with premium Hokkaido adzuki red beans and has a chunkier texture than Koshian. It is an ideal red bean paste for making dishes such as Dorayaki, Ohagi or Zenzai (Oshiruko). You can also use it in place of smooth red paste if desired, as the ingredients are exactly the same.