150ml/5fl oz blood orange juice (about 3 oranges)
2 blood oranges, zest only, finely grated
3 blood oranges, peeled, sliced into rounds
175g/6oz plain flour
25g/1oz icing sugar
1 tbsp icing sugar
200g/7oz sugar, plus extra for dusting
100驳/3陆辞锄 butter, cubed
100驳/3陆辞锄 cold unsalted butter, cut into small cubes
double cream or custard, to serve
3 free-range eggs, plus 2 yolks, beaten
1 free-range egg yolk