In your mixing bowl, combine everything but the chips, and beat until blended.
Place mixture onto a large piece of plastic wrap and twist to form a ball.
Freeze for 1 hour until it holds its shape.
Pour peanut butter and chocolate chips into a shallow dish.
Unwrap ball and roll it in chips to completely cover.
Place on plate, cover and freeze for several hours to firm.
Serve with vanilla wafer, graham cracker sticks, etc.