Whisk together the flour, salt , baking powder , baking soda in a bowl. Set aside
In a large bowl, cream the butter, white sugar and brown sugar together using an electric hand mixer until well combined and smooth in texture ( use medium speed)
Now add the egg and vanilla extract.
Beat the mixture on low until well combined
Sieve the previously prepared flour mixture into the creamy batter
Mix with spatula until just combined. Do not over mix
Add the chocolate chips and mix making sure the chips are evenly spread throughout the dough
Now refrigerate to chill this cookie dough for an hour. This is not necessary but recommended
Use an ice cream scoop ( or 2 tbsp ) to make cookies or simply use hands to roll into balls
Drop the balls about 2 inches apart on a baking tray lined with parchment paper