50g/1戮oz fresh root ginger, washed, unpeeled, finely grated
2-3 pieces crystallised ginger, sliced
1 large orange, peel only, white pith removed, sliced into 0.5cm/录in strips
80驳/2戮辞锄 plain flour
25g/1oz caster sugar
80驳/2戮辞锄 caster sugar
30驳/1录辞锄 cornflour
150g/5oz demerara sugar
30驳/1录辞锄 icing sugar
drop of vanilla essence
100驳/3陆辞锄 dark chocolate, broken into pieces
30驳/1录辞锄 unsalted butter, chopped
100驳/3陆辞锄 unsalted butter, softened until very soft, plus extra for greasing
3 free-range eggs, separated
1 shot espresso