Combine the almond flour, coconut flour, sweetener and salt in a bowl. In a separate little bowl, measure out the cashew nut butter and coconut oil.
Place the butter/oil mix into the microwave on medium heat to melt completely.
Pour the melted mixture into the bowl of flour and use a wooden spoon to mix well. Allow the dough to cool slightly before forming 6 balls from the mixture using clean hands. Set aside on a plate in the fridge for 40 minutes.
After 40 minutes, remove them a few at a time and toss them gently in a wide-bottomed bowl containing the desiccated coconut.
Return them to the fridge for at least another 20 minutes to firm up completely.