CHAMART introduces tea recipes, but this recipe has not been verified by a third party. Thus, please use the recipe as a reference.

Ingredients:
1 heaped teaspoon of matcha or powdered hojicha (about 2g)
150ml milk
200ml vanilla ice cream
In Japan many commercial ice creams are sold in 200ml servings.
4-6 ice cubes

*Tea leaves contain caffeine. The diuretic, stimulant and anticancer effects of caffeine intake are clinically recognized. On the other hand, excessive intake of caffeine may have a damaging effect on health. Especially, pregnant or breastfeeding women, and children should be careful with the amount of caffeine they intake.

Reference: 
農林水産省 カフェインの過剰摂取について
https://www.maff.go.jp/index.html
公益社団法人日本茶業中央会(2013) 新版 茶の機能: ヒト試験から分かった新たな役割 第一刷 一般社団法人農山漁村文化協会
大森正司、阿南豊正、伊勢村護、加藤みゆき、滝口明子、中村羊一郎編(2017) 茶の事典 初版第一刷 朝倉書店
高野實、谷本陽蔵、富田勲、中川致之、岩浅潔、寺本益英、山田新市 (2005) 緑茶の事典 改訂3版 柴田書店