How to cook
Pour the milk into a small pot. Put it on the stove and once it heats up, add the butter and cocoa and stir until they're mixed well.
Then crumble the chocolate, add it and stir until it melts completely. Once the chocolate has dissolved well, leave the mixture to cool.
Stir well and begin to form balls, roll them in the coconut flakes and arrange in a plate or platter, then put in the fridge to harden.