Fill a tall glass with ice cubes, creating a crackling sound as they settle and chill the glass.
In a small bowl, whisk the matcha powder with hot water until it dissolves completely and a frothy, velvety paste forms, releasing a fresh grassy aroma.
Add a teaspoon of honey or simple syrup to the matcha paste and whisk again to combine, adjusting sweetness to your preference.
Slowly pour the chilled milk into the glass over the ice, watching it cascade and swirl into the cold environment, creating a creamy layer.
Gently spoon or pour the whipped matcha paste into the glass, allowing it to swirl naturally into the milk and ice, forming a bright green vortex.
Stir the drink gently with a spoon to combine the layers, revealing a vibrant green swirl that darkens slightly as the matcha dissolves into the milk.
Once the layers are blended and the drink appears smooth and bright green with a slight opaqueness, it’s ready to serve and enjoy immediately.