1 large orange, zest only
2 large oranges (optional)
350g/12oz plain flour, plus extra for dusting
40驳/1陆辞锄 caster sugar
150驳/5陆辞锄 caster sugar
50驳/1戮辞锄 caster sugar
陆 tsp ground cinnamon
25g/1oz unsalted shelled pistachios, chopped
陆 tsp table salt
1 tbsp vanilla extract
vegetable oil, for greasing
1 x 7g sachet fast-action yeast
150驳/5陆辞锄 unsalted butter, melted, plus extra for greasing
300ml/10陆fl oz double cream
4 large free-range eggs
250ml/9fl oz full-fat milk, gently warmed to room temperature
4 tbsp of orange liqueur, such as Grand Marnier
6 tbsp freshly squeezed orange juice