How to make Shiroan Sweet White Bean Paste Japanese Traditional Sweets Wagashi

I made sweet white bean paste"Shiroan" or "Shiro-koshi-an".shiro is white in Japanese. Shiroan is made from white beans(oofukumame,tebou,white azuki shirohanamame etc.). This time i use Oofukumame(white kidney beans). ingredients white kidney beans "Oofukumame" 200g granulated sugar 160g #decocookie、#Wagashi、#ASMR