Make the strawberry puree by combining strawberries, sugar, and water in a blender or food processor. Blend on high speed for 30-45 seconds until completely smooth with no visible chunks remaining. The mixture should be bright pink and pourable with a consistency similar to thick syrup.
Strain the strawberry puree through a fine mesh strainer into a small bowl to remove any seeds and pulp, pressing down with a spoon to extract all the liquid. This creates a silky smooth puree that will layer beautifully in your drink. Set aside while you prepare the matcha.
In a small bowl, sift the matcha powder to remove any clumps. Add the hot water and whisk vigorously in a zigzag motion for 30-60 seconds until the matcha is completely dissolved and a light foam forms on top. The mixture should be bright green with no powder lumps visible.
Add the vanilla syrup or simple syrup to the matcha mixture and whisk again to combine thoroughly. The sweetener helps balance the natural bitterness of the matcha and creates a more authentic Starbucks flavor profile.
Pour the strawberry puree into the bottom of a tall glass, using about 3-4 tablespoons. Add the 1 cup of cold milk for the strawberry layer directly on top, stirring gently to create a pink strawberry milk base. The color should be a uniform light pink throughout.
Fill the glass with ice cubes, leaving about an inch of space at the top. The ice will help create distinct layers and keep your drink refreshingly cold.
In a separate container, combine the prepared matcha mixture with the 3/4 cup of cold milk and stir well. The matcha milk should be a vibrant green color with a smooth, creamy consistency.
Slowly pour the matcha milk over the back of a spoon held just above the ice to create a layered effect. Pour gently and steadily so the green matcha layer floats on top of the pink strawberry layer, creating the signature two-toned appearance. Serve immediately with a straw and enjoy the beautiful layers before stirring together for a marbled pink-green effect.
