Start by boiling water until it reaches a steady simmer. In a heatproof container, combine 1 tablespoon of dried butterfly pea flowers with 1 cup of hot water. Allow it to steep for 5-7 minutes until the tea develops a vibrant deep blue hue. Strain out the flowers, and set the tea aside to cool slightly while you prepare the other components.

Next, take a blender and combine ⅓ cup of ice-cold whole milk (or your preferred dairy-free alternative) with 1 tablespoon of vanilla syrup. Blend the mixture on high for about 10 seconds until it becomes smooth and frothy, forming a luscious vanilla cold foam. Set the cold foam aside for assembly.

Grab a tall glass and fill it generously with ice cubes to ensure your Iced Blue Tea Latte remains refreshingly cold. Pour the cooled blue tea into the glass over the ice, allowing the beautiful color to swirl around. To finish, gently spoon or pour the prepared vanilla cold foam on top of the blue tea, creating an eye-catching layered effect.

Your stunning Iced Blue Tea Latte is ready! To maintain its beautiful layered look, serve it immediately. You can either sip it as is to enjoy the contrast of flavors or give it a gentle stir for a creamy mix.