To make the oat layer

1. Pre-heat the oven to 180°C
2. Grease and line a 9 x 9 baking tin
3. Blitz the oats in a food processor until they make an oat flour
4. Mix in the ground almonds, coconut oil and maple syrup.
5. Divide the mixture into two portions, 400g and 200g.
6. Press the 400g mixture into the bottom of the prepared cake tin in an even layer.
7. Bake for 15 minutes until starting to go golden brown.
8. Remove from the oven and leave to cool.

To make the blackberry layer

1. Peel and chop the apple before slicing into small pieces.
2. Place the apple, blackberries, maple syrup, cinnamon and chia seeds into a saucepan and cook for a few minutes, stirring frequently until thickened.
3. Remove from the heat and leave to cool.

To make the top layer

1. Mix 200g of the oat mixture with the flaked almonds, cinnamon and combine well.

To assemble

1. Once the base layer and blackberry mixture are cool, pour the blackberry mixture over the base layer.
2. Crumble the top layer over, making sure of even coverage.
3. Bake in the oven for 20 minutes or until starting to brown.
4. Remove from the oven and leave to cool before removing from the tin and slicing into 12.