Sieve the all purpose flour along with corn flour and salt. Give it a nice mix and keep aside. In another vessel, add the melted butter along with sugar and whisk till it forms a creamy texture.
Then add the sieved powder, vanilla essence and mix it well. Initially it will be crumble, later you can form a smooth dough. Rest the dough in the fridge for one hour and cover it properly.
After 1 hour remove it from the fridge. Take a small pinch of dough and roll it between your two palms and make a round shape. Arrange the round shapes in the paper by leaving a small gap in between. Preheat the oven as per instruction for 10 minutes.
Bake these cookies at 180 degree celsius for 13 to 15 minutes. Once done, allow it to cool and dust the cookies with powdered sugar.
It is a truly melting moment! After dusting, store it in a air tight container with the use of baking sheet paper.