Preheat your oven to 180 degrees. Butter your cake tin.
In a bowl, mix the flour, baking powder, salt and matcha green tea.
In a saucepan over low heat, melt the butter then add the fresh cream and mix with a whisk. Remove from heat.
Using a food processor or electric mixer, beat the whole eggs, egg yolks and sugar until the mixture is thick and white. Put this mixture in a bowl.
In this bowl, add the flour, salt, yeast and matcha green tea mixture little by little with a spatula. Mix gently until you get a smooth dough.
Add the cream and egg mixture and mix with a spatula.
Put the dough in your cake tin and bake in the oven at 180 degrees for 40 minutes, keeping an eye on it. When the cake becomes slightly golden, prick it with a knife blade which must come out dry.
It's ready!