Mix ingredients by hand with a spoon. Almond flour is a gluten-free flour that will make a softer batter. Work in enough wet ingredients so the batter falls off the spoon together. The batter will be noticeably more grainy and less gloppy/smooth than a full gluten flour batter.
Bake at 325°F for at least 45 minutes or until a toothpick comes out clean. Sometimes the bottom is still moist, so if you use a springform cake pan, you can take a small peek or simply add another 5-10 minutes to ensure it's dry at the bottom. When you bake at low temps and slow, you don't have to worry about burning your cake.
Let cool and dust with matcha and cocoa powder.
You can cut the cake in half with a serrated knife and add a frosting or filling. This one is filled with mascarpone mixed with almond extract to add a complementing taste. Then use a cookie cutter to cut out the cake in a star or any whimsical shape to your heart's fancy.