Set the oven to 180°C / 350°F fan.
In a bowl, mix all the cake ingredients except for the cocoa / matcha powder.
Divide the batter to 2 bowls.
In one bowl, add the cocoa / matcha powder and mix well.
Grease a round tin and with a ladle, for each batter, pour the batter to the tin center, a little at a time.
Bake the cake for 30 minutes.
Check with a toothpick to make sure the cake is fully baked.
Cool the cake at room temperature.
To create the chocolate frosting: In the microwave, on 30 sec rounds, melt the dark chocolate and coconut liquid to a unified frosting.
To create the matcha frosting: In a small bowl, mix powdered sugar, matcha and water to a unified frosting.
Pour the frosting on the cake and have a piece with cup of tea!