Separate egg yolk and egg white in 2 different mixing bowls. Then use another bowl add cake flour, matcha powder, and baking powder, and sift thoroughly
Microwave milk to slightly warmer than room temp,
Preheat the oven to 375F
Whisk sugar into the egg yolk, until the volume is about doubled. Then add in milk, matcha powder, and cake flour
Mix egg white at high speed with a hand mixer, gradually add in sugar, and mix until a stiff peak forms
Add whites into egg yolk in 3 different parts, gently fold into mixtures
Prepare parchment paper on the cake pan, and spread the mixture onto the cake pan
Bake it for 10 minutes
Remove pan and gently remove parchment paper, let cake rest at room temp for at least 30 minutes while preparing for whipping cream filling
In a mixing bowl add whipping cream, matcha powder, and sugar, mix until smooth and form
Spread the whipping cream over the cake and gently roll up the cake
Can wrap inside the parchment paper tightly and chill in the fridge for at least 2 hours.
Slice it up and enjoy!