Grind the oreo cookies into fine "flour" with the help of a crusher. Add cream cheese and quark and mix well. Shape them into walnut-sized balls and refrigerate for 1 hour.
In the meantime, melt the couverture. Using a praline fork, quickly dip the cold raw pralines into the chocolate. Place in the refrigerator for another 1 hour to harden. Shelf life: approx. 8-10 days