With a pastry blender or two knifes cut in the cold shortening until it looks like crumbs.
Sprinkle cold water over flour.
Toss mixture with a fork to combine.
Add more water if needed.
Gently gather dough together into a ball and wrap in plastic wrap.
Chill in refrigerator for at least 30 minutes.
Roll dough and place into a 9 inch pie plate.
Mix apples, 1/3 cup sugar, flour, cinnamon and nutmeg together in a bowl then place in unbaked pie crust. (Note: Lately I sometimes I add an egg wash to the crust to make it more crispy but the pie is equally as good without).
Mix 1/2 cup flour and 1/2 cup brown sugar together in a bowl.
Cut in butter until mixture is crumbly.
Sprinkle topping mixture over apples.
Cover top loosely with aluminum foil.
Bake at 375 Degrees Fahrenheit for 25 minutes.
Remove foil and bake 25 to 30 more minutes, until top is golden brown.