The dough needs to be put in the fridge for over 24 hours.
Flour around 200g
bicarbonate around 3g
Baking soda around 3g
Salt around 4g
Butter around 140g,
Brown sugar around 100g
White sugar around 70g
Whip them till the butter’s color turns light.
Then add one egg and a little vanilla esscence. Keep whipping for another minute.
Add in chocolate chips. Mix well.
Then put the dough in a bag or a box and put it in the fridge for over 24hrs.
Divide the dough into small parts.
Make them in ball shape. Cos they will expand during baking, so make sure there is enough space for them to expand.