How to Make Best Crunchy Chocolate Chip Cookies

Ingredients:
140 gr Cake Flour
1 Tsp Cocoa
1 Tsp Baking Powder
70 gr Unsalted Butter
70 gr Sugar
1 Egg
100 gr Chocolate

* Preheat the oven for 190°C and then reduce to 170°C.
* Bake for 12~14 minutes.
* After that reduce the heat to 150°C and bake for another 5 minutes.