Mix first 6 ingredients. Roll into 3/4 inch balls and refrigerate for 2 hours.
When balls have been chilled: Melt chocolate and shortening in a saucepan. Use a toothpick to dip them into the chocolate. Let excess drip off. Place on wax paper. Refrigerate 10-15 minutes, until chocolate has hardened. Remove from wax paper and store in an airtight container in the refrigerator. They will keep this way for up to 2 weeks.