Mix flour, sugar, shortening and egg yolk in measuring cup to make 1 cup.

Roll 1/2 dough(will be sticky) in bottom of jelly roll pan.

Add apples, sugar, flour, cinnamon and nutmeg.

Dot with butter.

Roll out remaining crust and put on top of Apple mixture.

Beat egg white stiff and brush on top of crust if you like.

Bake 350 degrees for 1 hour.

Drizzle powder sugar frosting on top of you like. 1 cup powdered sugar 1/2 tablespoon milk and 1/2 tablespoon lemon juice.