Apple Strudel

1 sheet frozen puff pastry (from a 17.25-ounce package), thawed
1/3 Cup sugar
2 Teaspoons ground cinnamon
1 Can (20 ounces) sliced apples, drained
1/3 Cup raisins
1 egg, beaten

Preheat the oven to 400°F. Place the pastry on a baking sheet and unfold. In a medium bowl, combine the sugar and cinnamon; mix well. Reserve 2 teaspoons of the sugar mixture. Add the apples and raisins to the remaining mixture; mix well. Let sit for about 2 minutes; drain off any excess liquid. Spoon the mixture down the center of the dough. Cut horizontal slits in the dough 1 inch apart down each side of the filling, cutting from the edges of the filling to the outer edges of the dough. Brush each 1-inch dough strip with the beaten egg and fold the dough over the apple filling, alternating sides as if braiding the dough. Tuck the last strips under the strudel. Brush the top of the pastry with the remaining egg, and sprinkle with the reserved sugar mixture. Bake for 20 to 25 minutes, or until golden. Serve warm, or allow to cool before serving.