01 - Sift the matcha powder into a mug to remove clumps and ensure smooth texture.
02 - Add hot water and whisk vigorously with a bamboo whisk or small regular whisk until smooth and frothy.
03 - Heat oat milk in a small saucepan over medium heat until steaming but not boiling, or microwave for 45-60 seconds.
04 - Froth the oat milk using a milk frother or whisk until foamy and voluminous.
05 - Pour oat milk into the mug with matcha, holding back foam with a spoon, then spoon foam on top.
06 - Stir in maple syrup or sweetener of choice if desired, adjusting to taste preference.
07 - Serve immediately, optionally garnished with a light sprinkle of matcha powder on top.