To make the truffles, add the avocado, cacao, sweetener and salt to your food processor or high speed blender. Blitz until very smooth and creamy.
Very gently melt the coconut oil and chocolate in a pan then add this to the processor. Pulse to combine everything.
Transfer the mix to a container and then pop into the fridge for a couple of hrs to firm up so that you can easily roll the truffles.
For the plain truffles
Scoop out bite size pieces of the truffle mix and role into balls in your hands and then roll in some cacao.
Store in the fridge or freezer.
For the nutty truffles
Scoop out bite size pieces of the truffle mix and role into balls, flatten with your hand, insert a while hazelnut into the centre then fold the truffle around the nut. Role in your hand to create a round ball.
Add the chopped hazelnuts to a plate, then roll the the truffles in the nuts.
Store in the fridge.
Can be kept in the freezer to take out when you want a little bite