Place the nuts and seeds into a hand held chopper or blender and process until fine, but not sticky. I advice you to do this in pulses to make sure you don't end up with a nut and seed butter
Add the coconut oil, sweetener and cinnamon and blend again quickly
Spread the mixture out onto a lined or greased baking tray pushing it down to approx. 5mm thick. It doesn't need to be tidy because once cooked and cooled you will break it up
Bake in a pre-heated oven at 150 degrees (130 degree fan, gas mark 2) for 15-20 minutes until golden
Allow to cool completely before breaking up and storing in an airtight container