Melt butter in a sauce pan. Stir in flour to form a paste. Add white sugar, brown sugar and water; bring to a boil. Reduce temperature, and simmer 5 minutes.
In a large bowl mix sliced apples with nutmeg, ginger, cinnnamon, and vanilla extract (although for most everyone else the full tablespoon of cinnamon might be a lil much *my hubbys a cinnamon addict* x3 you can cut it down to 1/2 tablespoon)
Place the bottom crust in your pan. Fill with your apples, mounded slightly. Pour sauce over apples.
Bake for 30 mins at 400°F Now for the crumble topping.
I actually ganked this crumble topping from ratherbeswimmin <3~. Add flour, sugar, oats, brown sugar, cinnamon, and salt in the container of a food processor; pulse several times to mix. Scatter the butter over the top; pulse repeatedly until mixture resembles fine crumbs. Empty the crumbs into a large bowl and rub them together between your fingers until you have large, buttery crumbs.
Remove pie from oven and lower temperature to 375°. Carefully pour the crumble mixture in the center of the pie, spreading them over the surface evenly. Bake for another 30-40 mins you may have to cover with aluminum foil the final 15 mins to prevent your topping from burning. So keep a close eye on your pie ^.^.