For the dough, beat the butter, sugar and eggs until frothy. Fold in the flour and baking powder. Add the milk. Put the dough in a square shape (40 x 30) and bake at 180 ° C top / bottom heat for approx. 18 - 20 minutes. Let the cake cool in the pan.
For the cream, bring the sugar, block chocolate and milk to the boil and remove from the heat. When the chocolate mixture has reached room temperature, stir in the butter.
Put the desiccated coconut in a bowl. Now cut the cake into small cubes and turn the pieces first in the chocolate cream, then in the desiccated coconut and chill.