This delicious Apple and Blackberry Crumble is packed with jammy berries and chunks of tender apples topped with a deliciously crunchy crumble topping. This is a great make ahead dessert for summer that everyone loves.
In a large bowl combine all of the filling ingredients and stir to ensure that everything is well mixed. Transfer to a baking dish
In a food processor combine the walnuts, pecans, almond flour, butter, honey and vanilla and pulse until the nuts have broken down into a fine texture and the butter is well mixed in (it should be a thick batter like consistency) Add to a bowl and stir in the oats so everything is well mixed together and then using your fingers spread a thin layer overtop of the fruit ensuring the entire surface of the baking dish is covered.
Cover in tin foil and bake for 30 minutes at 375 degrees and then remove the tin foil and cook for an additional 15 minutes until the topping is golden brown in color and the filling is bubbling.