Start by blending salted peanuts and gather them in a bowl - they can remain slightly chunky. Blend the dates, peanut butter, coconut oil, and vanilla sugar into a "dough". Then add the blended peanuts to the "dough". Form the mixture into balls and refrigerate them while the chocolate melts (this can be done in the microwave or over a double boiler). Coat the balls with the melted chocolate and refrigerate them.