1 lemon or orange, grated zest only
5 tbsp golden syrup
1 tsp baking powder
80g/3oz fresh white fine breadcrumbs
125驳/4陆辞锄 caster sugar
125驳/4陆辞锄 self-raising flour, sifted
125驳/4陆辞锄 butter, at room temperature
3 eggs, beaten