1 lemon or orange, grated zest only
5 tbsp golden syrup
1 tsp baking powder
80g/3oz fresh white fine breadcrumbs
125²µ/4Β½΄Η³ϊ caster sugar
125²µ/4Β½΄Η³ϊ self-raising flour, sifted
125²µ/4Β½΄Η³ϊ butter, at room temperature
3 eggs, beaten