Steps
1. Preheat oven to 375°F (190°C).
2. In a bowl, mix apple slices, raisins, lemon juice, sugar, and cinnamon.
3. Roll out the puff pastry on a floured surface into a rectangle.
4. Sprinkle breadcrumbs evenly over the pastry to absorb moisture.
5. Spread the apple mixture over the breadcrumbs, leaving a 1-inch border.
6. Fold in the sides and carefully roll the pastry to enclose the filling.
7. Place the roll seam-side down on a baking sheet lined with parchment paper.
8. Brush the pastry with melted butter.
9. Bake for 25-30 minutes, or until golden brown.
10. Let cool slightly, then dust with powdered sugar before serving.