A delicious,incredibly moist cake,with no avocado flavor at all!

Ingredients (16 servings):
-1 avocado
-50 g sugar
-vanilla extract
-3 eggs
-1 tbsp baking powder
-100 g flour
-200 g melted dark chocolate
For the icing:
-4 tbsp milk
-4 tbsp sugar
-2 tbsp cocoa powder
-50 g butter