Heat the oven to 180C. Grease and line a deep cake tin with baking parchment. In a bowl with butter, add icing sugar and vanilla. Mix together.
Add egg yolks to the butter and mix it.
Now, in a bowl with flour, add egg mixture, baking powder and corn flour.
Stir well. Finally, add egg white and mix to combine until you have a thick batter.
Scrap half of the batter into prepared tin and gently level out. Sprinkle over, ground cinnamon and diced apple, cover it with remains of the batter and again sprinkle over cinnamon powder and diced apple.
Bake it in the oven for 40 minutes.Test the cake by inserting a knife or skewer into the centre, it should come out clean.
Leave the cake to cool for 15 minutes and then remove it from the tin. Cut it into pieces. Dust with sifted icing sugar and garnish with crushed pistachio. Serve it warm or cold with custard or crème fraiche.
Ingredients
