I came across the Japanese sweets called mizuyokan while reading a Japanese novel REAL WORLD written by Natsuo Kirino. The sweets I found out are made with a mixture of kanten (agar or gelatin), water, and azuki (red bean paste). One of the websites I visited has a recipe for matcha and white bean paste. The white bean paste may be dried navy or lima beans. I used a pound of dried lima beans to make the white paste. The flavor is very mild on its own which is great when used for the matcha (green tea powder) bean cakes. I also made with sweet azuki paste I already had in the freezer and adjusted the sugar to my taste. I love the smoky flavor of azuki beans; still my favorite.