Preheat your oven to 350F
Cook the apples on a frying pan for about 15 minutes on low heat
Let the apples cool completely
In a mixing bowl combine all the wet ingredients
In another mixing bowl sift all the dry ingredients
Add your wet ingredients to your bowl of dry ingredients and gently whisk until combined. Do not over-mix
In a small bowl add all your crumble ingredients and use your fingers to form a clumpy texture
Line your cake pan with parchment paper and add half of the cake batter
Add your apples and add the rest of the batter
Place all the crumble on top
Bake for 30-35 minutes or until a toothpick comes out clean
Transfer your cake to a cooling rack and let cool completely before cutting open
