In a mixing bowl, add the bananas and mash it with a fork.
To the mashed bananas, add the powdered sugar and mix well.
Add the vanilla extract and mix well.
Add 1/2 cup milk and mix well.
Sift the whole wheat flour, cocoa powder, salt and baking powder to the mixing bowl and mix well.
Add the rest of the milk (3/4 cup) to the mixing bowl and mix everything well to a smooth batter consistency.
Add the chocolate chips to the batter and fold it.
Heat up the Aebleskivers pan and apply butter or oil in each cavity.
Fill each cavity 3/4 with the batter. Cover the pan with the lid and let it cook for 4-5 minutes.
Slowly flip over the pancake ball in each cavity and cook the other side for 4-5 minutes. Once cooked, remove from the pan.
Dust powdered sugar over it and serve hot.