Mix the powdered sugar with the butter, the eggs, and the baking powder, until they look creamy.
Add the flour slowly, don't stop mixing. If the mix is too thick, add some milk. You have to reach this density.
Cover your tins with parchment paper (or butter). Im making 2 small cakes instead of a bigger one. Pre-heat the oven.
Empty the mix and bake (356F) for 45-50 min, until the cake is brown. Tip: Stab your cake with a knife, if the knife comes out dry, your cake is ready!
This is how they look when they are ready.
Add some powdered sugar for a finishing touch and enjoy!