Have you heard of ‘Kinako’? If you like Japanese sweets, Kinako is one of the ingredients you come across occasionally. It is a yellowy powder substance that is made of Soybeans. You can make it at home but I recommend to get it from a shop because it is very hard work and also it is probably much nicer, from my experience anyway.
When I was a high school student our domestic science teacher made us study about certain Japanese food ingredients. My group chose ‘Dried Shiitake Mushroom’ and some other group chose ‘Kinako’. They made home-made Kinako and we tried tasting it during the class. I remember that it tasted quite the same as the one from the shop but the texture was far too dry and we felt almost like choking. So, you don’t have to try making it by yourself. Get it from a Japanese Food shop.