Prepare the matcha green tea. Sift it into a bowl to prevent clumping, then add hot water. Whisk from side to side, either in a zigzag motion or back and forth, to evenly spread the powder into the water and create a foamy layer at the top. If whisked in a circular motion, the tea will not foam.
Add in the milk and whisk until foamy.
Pour the matcha green tea into a blender, add vanilla syrup and ice cubes, and blend.
To make the mocha drizzle, combine the brewed coffee, cocoa powder, and sugar in a saucepan on medium heat, constantly stirring.
Allow the mixture to cool, then drizzle it into a cup.
Pour in the blended matcha green tea.
Top off with whipped cream and some matcha powder.