Preheat & Prep: Preheat your oven to 350°F (175°C). Grease and line an 8-inch round cake pan with parchment paper.
Mix Dry Ingredients: Sift flour, matcha powder, baking powder, and salt into a bowl.
Whisk Wet Ingredients: In a separate bowl, beat eggs and sugar until pale and frothy. Add melted butter, milk, and vanilla, whisking until smooth.
Combine: Gently fold the dry mixture into the wet mixture. Do not overmix—stop when just combined.
Bake: Pour batter into the prepared pan. Smooth the top and bake for 25–30 minutes, or until a toothpick inserted into the center comes out clean.
Cool & Serve: Let cake cool 10 minutes in the pan, then transfer to a wire rack. Decorate with toppings of your choice before serving.