Finely chop the nuts in a food processor or with a large knife. Mix the nuts with all the other ingredients in a bowl, then spread on an oven tray lined with baking paper.
Bake for approx. 20 mins. in the centre of an oven preheated to 180 °C (convection). After 10 mins., loosen a little with a fork, so that the granola bakes to an even golden-brown. Remove from the oven and leave to cool.
Spicy cashew milk
Using a powerful blender, mix all the ingredients for 2-3 mins. until smooth and creamy.
Divide the granola into bowls and drizzle with cashew milk. Top with the avocado, bananas, blackberries and peppermint leaves, drizzle with maple syrup or honey and serve at once.