Preheat
oven to 400 degrees F. Melt butter in a large sauté pan
over medium heat. Add sugars, lemon zest, raisins and cinnamon,
mixing well. Add apples to pan and toss to coat with glaze.
Remove from heat and cool.
2.
Place puff pastry dough sheet on a floured work surface. Brush
with egg wash. Portion glazed apples lengthwise down the center
of the pastry. Sprinkle generously with walnuts and Streusel
topping.
3.
Fold over one side of pastry to cover apples then fold over
the other side to encase the mixture. Fold under edges to seal.
Carefully turn over and place on a lined baking sheet. Brush
with egg wash and sprinkle with additional Streusel topping.
4.
Place
in preheated oven at 400 degrees F and bake for 15 - 20 minutes
or until golden brown. Cool slightly and dust with Confectioner's
sugar. For service slice with a serrated knife.
