"She was as angry as Jem when Bertie Shakespeare sneeringly remarked, 'Call that a dog?'
'We do call it a dog,' said Susan with ominous calm.  'Perhaps you would call it a hippopotamus.'  And Bertie had to go home that day without getting a piece of a wonderful concoction Susan called Apple Crunch Pie and made regularly for the two boys and their pals."
-Anne of Ingleside, Chapter 18.

8 Macintosh apples - peeled, cored and chopped
1/4 cup white sugar
1/2 teaspoon ground cinnamon
1/2 teaspoon ground allspice
3/4 cup rolled oats
1/2 cup brown sugar
1/4 teaspoon ground nutmeg
1/2 teaspoon ground cinnamon
1/2 cup butter
3/4 cup chopped pecans
1 (9 inch) unbaked pie crust

Preheat oven to 375 degrees F (190 degrees C).  In a large bowl, combine apples, white sugar, 1/2 teaspoon cinnamon and allspice. Pour filling into pie shell.  In a medium bowl, combine oatmeal, brown sugar, nutmeg and 1/2 teaspoon cinnamon. Cut in the butter and mix with fingers until crumbly. Spoon over the top of the apples. Sprinkle top with pecans.  Bake in the preheated oven for 45 minutes, or until golden brown.

Thanks to ParkCornerPEI for the reference.