Preheat the oven at 175 degrees Celsius.
Place a baking paper in an oven form of approximately 20× 25 centimeter.
Mix the sugar and the eggs together.
Grate the almond paste and pour it in the melted butter.
Add the flour and mix it together.
Pour the batter in the oven form.
Peel and cut the apples in thin tranches.
Place it evenly in the oven form.
Mix the brown sugar and cinnamon powder and sprinkle on the apple cake.
Place in the middle of the oven for 40 minutes.
Take out the cake and let it cool down.
Cut the cake in squares before serving it.