In a mixing bowl, whisk together the plain Greek yogurt, milk, maple syrup, and vanilla extract until smooth and well combined.
Add the matcha powder and chia seeds to the mixture. Whisk again until the matcha is fully integrated.
Cover the bowl with plastic wrap or transfer the mixture into individual serving containers. Refrigerate for at least 2 hours, or preferably overnight.
Once the pudding has set, stir it gently to combine again. Scoop into bowls or jars, and dust with a sprinkle of matcha powder for an elegant finish.