1/2 of a 17.3-ounce package Pepperidge Farm® Puff Pastry Sheets (1 sheet), thawed
1 tablespoon water
2 tablespoons granulated sugar
1 tablespoon all-purpose flour
1/4 teaspoon ground cinnamon
2 large Granny Smith apples, peeled, cored and thinly sliced
2 tablespoons raisins
Confectioners' sugar (optional)
Heat the oven to 375°F. Beat the egg and water in a small bowl with a fork or whisk. Stir the sugar, flour and cinnamon in a medium bowl. Add the apples and raisins and toss to coat.
Unfold the pastry sheet on a lightly floured surface. Roll the pastry sheet into a 16 x 12-inch rectangle. With the short side facing you, spoon the apple mixture onto the bottom half of the pastry sheet to within 1 inch of the edge. Roll up like a jelly roll. Place seam-side down onto a baking sheet. Tuck the ends under to seal. Brush the pastry with the egg mixture. Cut several slits in the top of the pastry.
Bake for 35 minutes or until the strudel is golden brown. Let the strudel cool on the baking sheet on a wire rack for 20 minutes. Sprinkle with the confectioners' sugar, if desired.