Whisk together the softened butter, brown sugar and white sugar until light and fluffy.
Add in the egg, salt and vanilla extract and mix until combined.
Sift in the plain flour, baking soda and baking powder and mix.
Finally add in the chocolate chunks and mix until you get a smooth cookie dough.
Roll out 45g dough balls and place onto a baking tray lined with baking paper; allow them to chill in the fridge for 1 hour.
Once chilled, place the baking tray into a pre-heated oven at 180℃ for 12 mins.
Allow the cookies to cool slightly when you take them out of the oven and enjoy!
