Over a high heat, place the butter in a pot. While stirring constantly melt the butter until it turns dark brown. Then put in a bowl and let it cool in the fridge.
Place the two sugars, vanilla, salt and the cooled brown butter in a bowl and mix until well combined.
Add the egg and continue to stir with a whisk.
Add the flour, baking soda, baking powder and bread soda. *Bread soda makes the cookie more chewy and soft.
Mix in the chocolate chunks. Then roll the dough into 30g balls, and put in the freezer overnight.
After the cookies come out from the freezer, bake them for 10-12 mins at 190 C. Then let them cool for 10 mins before you eat them.