Prepare Dry and Wet ingredients: Add eggs, milk and melted butter in a bowl, whisk to mix them together. In another large bowl, sieve matcha powder and flour, then add sugar and mix the dry ingredients.
Prepare the crepe mix: Combine the wet and dry ingredients in the large bowl. Mix well, it should not be very thick. If it's too thick, add a bit more milk. Put it in the fridge for 30-60 mins.
 Make 20 crepes with sauce-pan: Turn on the fire to medium heat, lightly grease a saucepan with butter. Once the pan is warm, pour the crepe mix onto the pan quickly (very quickly and just enough to cover the pan with a thin layer), let it cook for around 30 seconds. When the crepe starts having little air bubbles, flip it over carefully and cook for another 30 seconds. Repeat this until you make at least 20 pieces of crepes. If your crepe is getting too brown, put a wet towel on the pan to cool down the pan a bit. Leave the crepe to cool at room temperature.
Trim the crepes: Stack all the crepes up, and using a cake mold, trim off the edges to make all the crepes having a uniform round shape.