Makes 18 cookies

Prep 10 min Rest 3 hours Cook 15 min

Ingredients

• 225g butter

• 140g caster sugar

• 2 medium eggs

• 2 tsp vanilla extract

• 50g milk powder

• 140g soft dark brown sugar

• 280g plain flour

• 1 tsp bicarbonate of soda

• ½ tsp finer flake sea salt

• 225g good-quality dark chocolate (at least 70 per cent cocoa solids), chopped

• Flaked sea salt, for scattering

An edited extract from Sea Salt by Lea-Wilson Family, photography by Liz and Max Haarala Hamilton. White Lion Publishing, $50