Mash the bananas well and prepare them.
Add eggs and sugar to a bowl and mix.
Add the mashed bananas, cooking oil, and milk, and mix.
Sift in cake flour, baking powder, and salt, then mix.
Add chocolate chips and mix evenly.
Pour the batter into a baking pan.
Bake in a preheated oven at 180°C for 40-45 minutes.
After cooling, slice into pieces for serving.