1. First, heat the butter and set aside. Then beat the sugar and eggs until frothy, then add the vanilla sugar, flour and baking powder. Stir in the melted butter.
Also try: braised cucumbers, which you can conjure up with so few ingredients!
2. Finally, stir in the apple cubes, spread everything on a baking sheet and bake at 210°C for about 30 to 40 minutes. Sprinkle with powdered sugar if desired.