1 unwaxed lemon, zest only
2 tsp freshly squeezed lemon juice
125驳/4陆辞锄 lemon curd
115g/4oz plain flour
115g/4oz caster sugar, plus 4 tbsp for dredging
200g/7oz icing sugar, sifted
butter, for greasing
125驳/4陆辞锄 softened butter
3 free-range eggs