250g/9oz blueberries
250g/9oz plain flour
250g/9oz caster sugar
100驳/3陆辞锄 caster sugar
icing sugar, for dusting
1 vanilla pod, cut in half lengthways and seeds scraped out
50驳/1戮辞锄 butter, melted
500ml/18fl oz double cream
8 medium free-range eggs