Add the butter and sugars to a bowl and mix together
Add the egg, and vanilla
Add the flour, baking powder, bicarb, and salt and mix
Add the chocolate chips and distribute well
Split the cookie dough into eight - about 120g each
Chill the cookies for an hour in the fridge
Preheat the oven to 200ºc/180ºc fan
Split the cookies between large lined trays
Bake for 12-14 minutes
Cool for 30 minutes
