Cream Sugar and Butter: In a mixing bowl, cream together the sugar and softened butter until light and fluffy.

Add Eggs: Beat in the eggs one at a time, continuing to mix until well combined.

Incorporate Flour and Baking Powder: Gradually add the flour and baking powder, mixing until the batter is smooth.

Prepare the Pie Pan: Pour the batter into a prepared pie pan lined with parchment paper to prevent sticking and ensure easy removal.

Prepare the Filling: Dice the apples into small cubes. In a separate bowl, toss the apple cubes with vanilla sugar and cinnamon. Optionally, add chopped walnuts or pecans for extra texture and flavor.

Add Filling to Batter: Gently fold the apple mixture into the batter, pressing it down into the batter slightly.

Bake: Bake in a preheated oven at 350°F (175°C) for approximately 1 hour, or until a toothpick inserted into the center comes out clean. Baking times may vary depending on your oven.