Grease the baking baking or line it with baking sheet and set aside, pre heat the oven for 10 minutes at 180 degree celsius
Sieve the All purpose flour/ maida, corn starch, Baking soda, and salt together
In a large mixing bowl take butter and sugar and beat it well with hand mixer or hand whisk
Add Mashed banana and mix it
Now add vanilla essence and mix it
Then add the dry ingredients and fold it until combined
Add chocolate chips and mix it
Take small ball size and press it slightly and arrange it in a baking tray and bake it the preheated oven for 15 minutes at 180 degree celsius or till the sides turn golden brown each oven is different so bake it accordingly.
Now cookies are baked completely cool them and store it in air tight container