Preheat Oven: Set oven to 375°F (190°C) and line a baking sheet with parchment paper.
Prepare Filling: In a bowl, mix apples, sugar, cinnamon, nutmeg, and raisins.
Prep Pastry: Roll out pastry on a lightly floured surface. Brush lightly with melted butter and sprinkle breadcrumbs over the surface.
Add Filling: Spread apple mixture evenly along one side of the pastry, leaving a border.
Roll & Seal: Carefully roll the pastry over the filling, tucking the edges to seal. Place seam-side down on the baking sheet.
Bake: Brush the top with melted butter and bake for 35–40 minutes, or until golden brown and crispy.
Serve: Let cool slightly, then dust with powdered sugar before slicing.
