Place walnuts in a food processor and blend on high until finely ground. Add the remaining ingredients (except for the chocolate chips) and blend until a uniform dough has formed. Add the chocolate last then pulse a few times until evenly combined.

Using your hands, scoop out one heaping tablespoon worth of dough at a time and roll into balls. Refrigerate for at least thirty minutes before serving. (refrigeration isn't necessary but it helps them solidify)

Store in an airtight container in the refrigerator or at room temperature for up to one week.