Put all the ingredients except for the tea in a small non-stick pan. (Add the matcha by sifting with a tea strainer.) Mix briskly and leave for a few minutes.
Set the heat to medium, and simmer while mixing with a wooden spatula. Cook the mixture until it forms a paste that's the consistency you want. Turn the heat off and add salt to finish.
Use this paste to make these Japanese confectionary Recipe ID: 1027876. For Girl's Day, serve filled with sakura blossom paste.
They look like this inside.
This is the dried white bean an powder I used.
I made anko balls with the matcha-an paired with sakura-an. (Recipe ID: 1057442)
Story Behind this Recipe
I wanted to make cute Hinamatsuri (Girl's Festival) colored Japanese sweets.
The photo doesn't do justice to the actual hue of the paste, unfortunately. Adjust the amount of matcha to taste. 1/2 teaspoon is too little, and 1 felt like too much, so I went for somewhere in between. If you have some, you can add a little matcha tea flavoring or liqueur to add a bit more flavor.