Peel and slice peaches. Place slices into unbaked pie shell & set aside. Preheat oven to 350 degrees.
Mix together the egg, butter, flour, sugar and vanilla. Pour & spread that mixture over peaches (it will be rather thick) and cover with second unbaked pie shell. Make a few slits in crust to allow for steam release.
Bake @ 350 for approximately 1 hour and 10 minutes.
Optional: You can always brush top crust with egg wash or melted butter then sprinkle with a little sugar. (I brush with butter). Also, it's even better with homemade crusts so if you have the time please make your own crusts. Peggi Tebben has an excellent recipe... PEGGI'S FLAKY PIE CRUST