150˛µ/5½´Çłú plain flour, sifted
5g caster sugar
100˛µ/3½´Çłú caster sugar
3g fine salt
1 vanilla pod, seeds only
50ml/2fl oz orange liqueur
100˛µ/3½´Çłú butter, cut into small pieces, plus extra for greasing
200ml/7fl oz fresh custard
300ml/10fl oz double cream
4 medium free-range eggs
125ml/4fl oz milk
1 quantity choux pastry (see above)