1 orange, grated zest only
3 tbsp orange curd
1 level tsp baking powder
100驳/3陆辞锄 caster sugar
100驳/3陆辞锄 sifted icing sugar
icing sugar, to dust
100驳/3陆辞锄 self-raising flour
50g/1戮oz soft butter
2 large free-range eggs
100驳/3陆辞锄 baking spread