3 lemons, rinds only (white pith removed)
1 unwaxed lemon, juice and rind (white pith removed)
1 unwaxed lemon, zest only
300²µ/10½´Ç³ú caster sugar
50²µ/1¾´Ç³ú caster sugar
80g/3oz caster sugar
200g/7oz savoiardi biscuits (sponge fingers)
2 free-range eggs, yolks and whites separated
250g/9oz mascarpone
500ml/18fl oz vodka