crumble for apple pie
Aromatic Apple Filling
Apples are certainly the essential ingredients. You can use cooking apples (or apples for baking), but truthfully, any kind will be OK as long as you are fine with either a mushier or chunkier apple part. Additionally, if you choose tangy apple, you may need to add more sugar to balance the tart flavor. However when I add sweet apples, I often completely leave out the sugar in the apple mix.
Nevertheless, cinnamon for me is a necessary ingredient in the apple part of the crumble. One tsp ground cinnamon ensures the treat (along with your whole house!) will certainly scent lovely. You can also add some cloves to your apple treat for some extra flavor.