Put cacao powder, the cookie crumbles/smashed biscuits, vanilla sugar and the icing sugar in a bowl, and mix it together.
Divide the margarine in small bits and add it in the bowl with the dry ingredients, and mix it together with a fork.
Add the arak liquid in the bowl and mix it together like a dough.
Make the dough in preferred ball sizes.
Let the balls rest in the fridge around 30 minutes.
Melt the chocolate in a bowl.
Roll the balls in the chocolate, and then roll them in the chocolate sprinkle or the grated coconut.
Let the chocolate balls rest in the fridge until it is time to serve.