200g/7oz blueberries
150驳/5陆辞锄 golden syrup
1 tsp baking powder
175g/6oz golden caster sugar
110驳/3戮辞锄 caster sugar
pinch salt
175g/6oz self-raising flour
1 vanilla pod, split in half lengthways, seeds scraped out using a sharp knife
175g/6oz unsalted butter, softened, plus extra for greasing
250ml/9fl oz double cream
3 free-range eggs
6 egg yolks
250ml/9fl oz full-fat milk