In a food processor, combine the ingredients for the crust and blitz until well combined and sticky. Press the mixture into a lightly greased loose bottom tart tin (I use a 20cm tin).
For the filling, mix together the nut butter, maple syrup, cinnamon and cacao powder. Gradually drizzle in a little non-dairy milk at a time whislt mixing until you've achieved a whipped, creamy consistency. Stir through the melted coconut oil and spread the filling over the base.
Layer the pecans on top of the tart to desorate and sprikle with cinnamon and coconut sugar. Pop this into the fridge for 4 hours or over night to set.