150²µ/5½´Ç³ú plain flour
90²µ/3½´Ç³ú caster sugar
1 cinnamon stick
1 tbsp cornflour
pinch of salt
150²µ/5½´Ç³ú strong white flour
1 vanilla pod
100²µ/3½´Ç³ú dark chocolate
250g/9oz unsalted butter
unsalted butter, for greasing
100ml/3½fl oz double cream
2 free-range medium eggs
3 free-range egg yolks
250ml/9fl oz whole milk