I recreated the matcha tea soda that I had in Kyoto.
Put 1 teaspoon of matcha into a bowl and add 1/2 a teaspoon of light brown sugar.
Add 2 ounces (about 60 milliliters) of hot water (not boiling) and whisk until frothy.
Add some ice to a glass and pour the matcha in.
Then fill the remainder of the glass with soda water.
NOTES: Not as green as the one I had in Kyoto but still really refreshing. I'm making these again while the daytimes are still warm.