For the filling, microwave butter and nut butter together until soft. Stir in the remaining ingredients for the filling. With about 1/2 tbsp. of dough, roll into balls and place on a baking sheet. Freeze for 1 hour.
To prepare the outer coating, microwave the remaining butter and chocolate. Dip the frozen balls into the chocolate mixture and place back on the sheet. Freeze 1 more hour, then ENJOY!!!!