1 unwaxed lemon
1 large unwaxed lemon, finely grated zest only
100²µ/3Β½΄Η³ϊ caster sugar
175g/6oz caster sugar
50²µ/1ΒΎ΄Η³ϊ ground almonds
225g/8oz self-raising flour
200g/7oz granulated sugar
175g/6oz softened butter
4 large free-range eggs