200g/7oz plain flour
225g/8oz caster sugar
2 tbsp caster sugar (optional)
100驳/3陆辞锄 cornflour
100驳/3陆辞锄 icing sugar
175g/6oz unsalted butter, softened, plus extra for greasing
300ml/10fl oz double cream
4 free-range eggs, lightly beaten
150ml/5fl oz full-fat milk