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