
Break the cookies and place them in a measuring cup or bowl. Grind the cookies in a blender until they become crumbs.

In a saucepan, combine sugar, cocoa, butter and milk.

Place the saucepan over medium heat and heat the mixture until the butter melts. Stir until smooth. Remove from heat and let the mixture cool slightly.

Pour crushed cookies into the mixture of milk, butter and cocoa. Mix the mixture with a spoon or silicone spatula. From the resulting dough, mold four potato-shaped cakes.

Roll the cakes in cocoa powder and refrigerate for 1 hour. Done.