ingredients
Butter 120g
Brown sugar 60g
White sugar 50g
1 Egg
AP flour 150g
Cornstarch 5g
Baking powder 1/2 tsp
Baking soda 1/4 tsp
Pinch of salt
Vanilla extract 1/2 tsp
Chocolate chip 120g (I used dark one because I love dark chocolate)
Walnut 120g