Combine wheat flour, corn flour, salt and baking powder and keep it aside.
Take butter in a bowl
Add sugar to it and mix butter and sugar to form a creamy texture.
Add vanilla essence to it.
Then add the Flour mixture to it.
Mix everything together to form dough. Add few drops of milk if required.
Now add chocolate chips to the dough.
Mix the dough so choco chips is incorporated.
Take small ball of dough and flatten it with your hands
Place the cookies in baking tray lined with parchment paper.
Place extra choco chips on the top of cookies
Preheat the oven at 160°C and bake in the same temperature for 20-22 minutes till it is done.
Serve the cookies with hot cup of Tea/Coffee