In a bowl, combine the quark, egg, rapeseed oil, brown sugar, vanilla sugar, baking powder, and flour, stirring until a batter forms. Fold in the chopped apples.
Preheat the oven to 180°C (356°F) fan-assisted.
Line a baking sheet with parchment paper. Using a spatula, shape the batter into rolls and place them on the baking sheet.