To prepare pie:

1. Place a rack in the middle position and preheat oven to 325 degrees F.
2. In a large bowl, combine all filling ingredients and combine well.
3. Pour filling into baked pie shell.
4. Bake pie until filling has set and pie tester comes out clean, about 1 1/2 to 2 hours.
5. Transfer pie to a wire rack and allow pie to cool completely.

To prepare brown-sugar cream:

1. In a medium mixing bowl, add all ingredients.
2. Mix well.
3. Refrigerate at least 2 hours or overnight.

To prepare crunchy pecan topping:

1. Preheat oven to 300 degrees F.
2. In a medium mixing bowl, combine flour, sugars and butter.
3. Work with fingers to form moist dough.
4. Add pecans and mix well.
5. Pour mixture into a 9-inch pie plate.
6. Bake for 1 hour or until mixture is lightly browned.
7. Allow to cool completely.
8. Break mixture into pieces.

To assemble:

1. Pour mixture over slices of pie.
2. Strew pecan pieces over slices of pie.