How to make
Crumble the biscuits with your hands in a bowl. Melt the butter and add the milk, cocoa, sugar and walnuts.
Add the mixture to the crumbled biscuits.
Mix everything well until you get a homogeneous mixture but be sure not to mash the biscuits to powder.
Pour the mixture into a small oven dish or form. Even it out, sprinkle with coconut flakes and put it in the fridge for 2 hours before serving.
Enjoy!