40²µ/1½´Ç³ú plain flour
60²µ/2¼´Ç³ú caster sugar, plus extra for dusting
40²µ/1½´Ç³ú caster sugar
25g/1oz cocoa powder
180g/6¼oz plain chocolate (minimum 36% cocoa solids)
butter, for greasing
6 large free-range egg whites
4 large free-range egg yolks
300ml/10fl oz milk