Mix Ingredients: In a mixing bowl, combine the flour, sugar, vanilla sugar, and baking powder. Add the softened butter and eggs. Stir until the mixture is smooth and creamy.

Fold in Apples: Gently fold the chopped apples into the batter until evenly distributed.

Set Temperature: Preheat your oven to 210°C (410°F), using top and bottom heat or hot air.

Line Tray: Line a baking tray with baking paper to prevent sticking and burning.

Spread Batter: Pour the batter onto the prepared tray and spread it evenly.

Bake: Bake for about 25-35 minutes, or until the surface is lightly browned and a toothpick inserted into the center comes out clean.

Cool Slightly: Remove the pie from the oven and let it cool slightly.

Cut: While still warm, cut the pie into pieces directly on the tray to prevent tearing.

Optional Toppings: Dust with powdered sugar and/or decorate with almonds if desired.