Preheat oven to 350. Spray a 9x5 loaf pan with non-stick cooking spray.
In a bowl of an electric mixer fitted with the paddle attachment, cream the butter and sugar until light and fluffy. (5 minutes)
Add the eggs & vanilla and combine.
Add the dry ingredients and mix until thoroughly incorporated.
Fold in the apple pie filling.
Pour into the prepared pan.
Combine all the ingredients for the crumb topping in a separate small bowl.
Pour on top of the batter in the loaf pan.
Bake for 75-90 minutes or until the center tester comes out clean.
Let cool completely or serve warm.