Place all of the ingredients into a food processor or high-speed blender and process until you achieve desired texture (from smooth to slightly chunky).
If using a high-speed blender, start blending the nuts for about 20 seconds before adding the remaining ingredients. You may have to stop a few times and scrape down the sides.
Once well combined, place the truffle mix in a large bowl and use wet hands to create a large sticky ball of the mixture. (If you used a food processor, you may have to add one more tablespoon of water as you use your hands to make the mixture stick back together.)
Using approx 2 TBSP of the mixture at a time roll the truffle mixture between your hands until you have a nice small ball formed. Roll the truffles in the following to coat: