If using a bamboo whisk (or chasen), soak the bristles in a bowl of hot water for 10 minutes to prevent breakage or damage.
Sift the matcha into a bowl then pour 2 oz warm water. Using the whisk, mix the matcha with water in a fast zig zag motion until nice and frothy. If using sweetner, add it in now and mix until well combined.
Pour your choice of milk into a glass then carefully pour the matcha on top. Enjoy!