2 lemons, zest only
650g/1lb 7oz golden syrup
250g/9oz plain flour, sifted, plus extra for dusting
75驳/2戮辞锄 icing sugar
large pinch salt
150g/5oz day-old brown or white bread, crusts removed
175g/6oz butter, plus extra (melted) for greasing
150g/5陆oz unsalted butter
clotted cream or double cream, to serve
50ml/2fl oz double cream
1 free-range egg
2 free-range egg yolks