How to make magic cake

• Cream the egg yolks with sugar until fluffy.
  4 egg yolks, 150 g sugar
• Sift the flour through a sieve together with bitter cocoa.
  75 g wheat flour, 20 g bitter cocoa
• Pour the cooled butter into the creamed egg yolks and mix briefly.
  100 g butter
• Add the flour with cocoa and mix on low speed.
• Slowly pour in the milk and mix - the batter will become thin.
  2 cup milk
• Whisk the egg whites until stiff with a pinch of salt.
  4 egg whites
• Add the whisked egg whites to the batter - gently mix.
• Line a baking pan approximately 20/20 cm with baking paper.
• Pour in the batter.
• Bake at 170 degrees Celsius (fan mode) for about 40 minutes.
• After baking, the cake may slightly sink - once cooled and cut, the cake should have layers - a more baked bottom, a flan-like middle, and a sponge-like top :)