How to make egg yolk cake with apple step by step

Step 1 - preparations

• Grease the baking pan with butter and sprinkle with flour, or line with baking paper.
  
• Combine flour, baking powder, and cinnamon - you can sift them through a sieve.
  225 g wheat flour - all-purpose, 2 teaspoons baking powder, 0.5 teaspoons cinnamon
  
• Grate the apple on a coarse grater - you can peel it or not :)
  approx. 200 g apple
  
• Preheat the oven to 180℃ (top/bottom heat) or 170℃ (fan-assisted).

Step 2 - preparing the batter

• Place egg yolks and sugar in a large bowl.
  6 egg yolks, 200 g powdered sugar
  
• Mix together on high speed with a mixer until the mixture becomes fluffy and light in color.
  
• Add milk to the bowl and briefly mix on low speed.
  60 ml milk
  
• Add flour in portions and briefly mix - just until combined.
  
• Add the apple to the bowl and mix with a spoon.
  
• Transfer the batter to the prepared pan.
  

Step 3 - baking the cake

• Place the pan in the preheated oven and bake for about 35-40 minutes - until a toothpick comes out clean.
• Before serving, you can additionally sprinkle the cake with powdered sugar.