150驳/5陆辞锄 plain flour
陆 tsp bicarbonate of soda
50驳/1戮辞锄 caster sugar
75驳/2陆辞锄 milk chocolate, broken into small pieces, plus an extra 25g/1oz to serve
25g/1oz miso paste
100g/3陆oz light brown muscovado sugar
sea salt
75驳/2陆辞锄 dark chocolate, broken into small pieces, plus an extra 25g/1oz to serve
100g/3陆oz salted butter, melted
1 large free-range egg