75g/2½oz plain flour
25g/1oz plain flour
75g/2½oz caster sugar
20g/¾oz cornflour
1 vanilla pod, seeds only
200g/7oz plain chocolate (around 36% cocoa solids) broken into pieces
60g/2¼oz butter, cut into cubes
150ml/5fl oz double cream
2 free-range eggs, lightly beaten
6 medium free-range egg yolks
500ml/18fl oz full-fat milk