1 orange, peeled and juice
500g/1lb 2oz rhubarb, cut into finger length pieces
350g/12oz plain flour
caster sugar, to cover
250g/9oz caster sugar
50驳/1戮辞锄 ground almonds
100驳/3陆辞锄 icing sugar
200g/7oz crushed pistachios
2 tbsp crushed pistachios
pinch sea salt
1 vanilla pod, seeds removed
250g/9oz unsalted butter
250g/9oz salted butter
1 free-range egg, beaten
2 free-range eggs
3 free-range egg yolks