Philadelphia Apple Pie

---------------------------CRUST--------------------------- 1 1/2 c Flour

1 ea Stick butter,cut in pieces

4 tb Ice water

1/4 ts Salt

1 x Cinnamon

--------------------------FILLING-------------------------- 8 ea Apples,sliced

1 ea Egg

1 c Sugar

1 1/2 c Sour cream

2 ts Vanilla

1/3 c Flour

1/8 ts Salt

--------------------------TOPPING-------------------------- 1/3 c Brown sugar

1/4 lb Melted butter

1/3 c Granulated sugar

1 pn Salt

1/3 c Flour

1 ts Cinnamon

1 c Chopped walnuts

CRUST: Combine flour,salt and butter in bowl.Cut butter into flour.Add ice water;toss to form ball.Roll out to fit 12" pie pan.Sprinkle with cinnamon.Bake @ 400 degrees for 20 minutes.

FILLING: Mix filling ingredients together.Fill shell.Bake @ 450 degrees for 10 minutes.Then @ 350 degrees for 40 minutes. TOPPING: Sprinkle over pie.Bake 15 minutes. -----