• In a large food processor fitted with an "S" blade, grind the walnuts into a fine meal.
• Add the rest of the ingredients and process again until a sticky, uniform dough is formed.
• Scoop the batter by heaping tablespoons onto a plate or baking sheet lined with parchment (to prevent sticking).
• Roll the balls between your hands and then roll them in cocoa powder, if desired.
• Store the balls in the fridge or freezer, and serve them chilled for the most firm texture.

TIP!  Feel free to use any nut variety you like!