75²µ/2½´Ç³ú plain flour
25g/1oz plain flour
60g/2¼fl oz caster sugar
2 tsp cornflour
pinch salt
100²µ/3½´Ç³ú dark chocolate, at least 70 per cent cocoa solids
butter, for greasing
50g/1¾oz unsalted butter
2 large free-range eggs, beaten
4 free-range egg yolks
280ml/10fl oz milk
150ml/5¼fl oz whipping cream