Whisk the wet ingredients

• Whisk the sugars, salt and melted butter together.
• Add the vanilla and egg and combine until ribbons form, without over whisking.

Fold in the dry ingredients and chocolate

• Fold in the flour and baking soda with a spoon.
• Add the chopped chocolate, keeping a small amount back to press into the tops later.
• Chill the mixture in the fridge.

Form and freeze the cookie dough balls

• Use an ice cream scoop to make cookie dough balls.
• Press the reserved chocolate onto the tops.
• Freeze on a tray or plate until ready to bake, then transfer to a bag for easy storing.

Bake the cookies

• Pre-heat the oven to 180 °C.
• Place the cookies on a tray lined with baking paper and bake.
• Take out of the oven and leave to set for about 20 minutes.
• Finish with flaky salt and enjoy.