|1¼ tsp||baking powder|
|1 tbsp||matcha powder|
|vanilla extract (optional)|
Preheat the oven to 160°C/320°F (convection). Whisk butter and sugar in a large bowl until creamy. Gradually stir in the eggs and beat the mixture until foamy.
Combine flour, baking powder, matcha powder, and salt in a medium bowl. Add milk and, if desired, vanilla extract.