A Green Tea Latte is made primarily using which type of ingredient?

A Green Tea Latte is primarily made using tea as its key ingredient, specifically matcha green tea powder. This blend is combined with steamed milk, which can be of various types, but the foundation of this beverage is indeed the matcha tea itself. The tea provides the distinctive flavor and health benefits associated with the drink, making it central to its identity.

While options such as coconut milk and almond milk may be involved as alternative types of milk for the latte, and syrup may be added for sweetness or flavor, they do not constitute the primary ingredient that defines a Green Tea Latte. The focus on tea highlights how integral it is to the drink's composition and character.