2 lemons (juice of 1 and finely grated zest of 2)
1 lemon, juice only
50g/2oz plain flour or white spelt flour
200g/7oz golden caster sugar
125驳/4陆辞锄 ground almonds
5-6 tbsp icing sugar
200g/7oz butter, softened, plus extra for greasing
3 large free-range eggs (organic if possible)