1) Peel and slice apples and add to a bowl with blueberries.
2) Add cornstarch and Immune Defense.
3) Mix all together & pour base into a pan. Add lemon zest on top.
4) Mix coconut sugar, coconut oil, finely chopped pecans and rolled oats.
5) Top filling with crumble mixture and evenly spread on top of fruit.
6) Bake in the oven at 350º F for 40 minutes and enjoy!