150g/5oz plain flour
4 tbsp caster sugar
60²µ/2¼´Ç³ú pistachios, coarsely chopped
pinch salt
1 vanilla pod, seeds only
100²µ/3½´Ç³ú plain chocolate, minimum 75 per cent cocoa solids
100²µ/3½´Ç³ú white chocolate
100²µ/3½´Ç³ú butter, plus extra for greasing
4 free-range eggs
4 free-range egg yolks
300²µ/10½´Ç³ú mascarpone
2 tbsp Marsala wine