In summer, use a frozen banana for a smoothie-like texture
Break the banana into small pieces and put into a glass. Mash with a small whisk. (I bought my whisk at the 100 yen-shop.)
It becomes purée really quickly.
Add all the ingredients marked ☆ to the glass and mix well. Finally, add the soy milk, give it a stir, and it's done.
Story Behind this Recipe
My younger sister was addicted to brown sugar and black vinegar soy milk drinks, so I tried drinking them too. Once I added banana and cinnamon, I started to drink them more often. I couldn't find a similar recipe, so I uploaded it.
I like black vinegar, so I add a tablespoon! But I guess if you increase the amount of vinegar, if you also increase the amount of sugar. I love cinnamon, so I always add it.