Boil red bean, throw boiling water away as soon as water boil

Add cold water and keep simmering until soft

Add sweetener and keep simmering until water is almost gone

Blend all of the dough ingredients except matcha

Knead well (put some flour on table surface to prevent stick)

Divide dough into two and add matcha powder into one of it

Wait for it to ferment until double its size (around an hour)

Divide both of the dough into two pieces (get 2 white 2 green dough) and roll out

Place one white dough at the bottom, then red bean, then one green dough, then red bean, then one white dough, then one green dough

Cut dough into 6-8 pieces and slash two lines then braid the dough

Ferment again until almost double its size

Bake at 180c or 350F for 20mins