Preheat oven to 350*F.
In a small saucepan, melt butter and brown sugar until starts to boil.
Remove from heat.
Pour into the bottom of a 9" pie plate.
Sprinkle with pecans and place in the refrigerator to cool 10-15 minutes.
Remove from refrigerator and place pastry into the bottom.
Mix flour, sugar and cinnamon.
Sprinkle a couple teaspoons of flour mixture over the bottom crust.
Layer with a few apples, sprinkle more flour mixture and repeat.
Place the top pastry over apples.
Combine the egg and water and brush on the top.
Bake at 350*F for 20-25 minutes or until top is lightly browned.
Immediately turn pie out onto your serving dish.
Serve with ice cream if you desire!