130驳/4陆辞锄 caster sugar
40g/1陆oz chopped hazelnuts
50g/1戮oz neutral-flavoured oil, such as rapeseed
pinch sea salt flakes
125驳/4陆辞锄 dark chocolate, minimum 70% cocoa solids
400g/14oz dark chocolate, minimum 55% cocoa solids
375g/13oz double cream
150g/5陆oz free-range egg yolks