Top your pie with second crust. You can fit the entire sheet on top and add a few slits, or you can add a decorative top. Crimp the edges. In a small bowl add water and egg white. Whip together and brush on the top. This will help give the pie a nice golden brown.
Bake at 450 for 30-35 minutes until golden. Let cool completely before serving. If your oven cooks on the warm side cover the sides of the pie crust with some foil to avoid burning. The last 15 minutes remove the foil.