Step 1

Preheat oven to 180 C (350 F) standard / 160 C (320 F) fan-forced. Line two baking trays or cookie sheets with baking or parchment paper.

Step 2

In a large mixing bowl, add the butter and sugars and beat using an electric beater on medium speed for a minute or two until smooth and creamy.

Step 3

Add egg and vanilla and beat until combined, scraping down the sides of the bowl. Add flour and baking soda and beat again just until a soft cookie dough forms. Add chocolate chips and stir.

Step 4

Scoop out cookie dough (roughly 1.5 tablespoons each) into small balls and place on baking trays, leaving room for the cookies to spread. Place in oven for 10-11 minutes or until golden brown on the edges.

Step 5

While the cookies are still warm, add a few extra chocolate chips on top. Leave cookies to cool for 5 minutes before transferring to a wire rack to cool completely. Sprinkle cookies with sea salt.