Peel the orange and grapefruit so that the white skin is completely removed. Remove the fillets with a sharp knife between the parting skins, collecting the juice. Stir mascarpone, curd and sugar until smooth. Pour the collected juice through a sieve, stir in the cream with the lime peel and juice. Drizzle the lady fingers with liqueur. Put half of the sponge cake into a mould. Add half of the cream and smooth it down. Spread orange and grapefruit fillets on top. Pour the rest of the sponge cake and cream on top and smooth the cream down. Chill for 4-6 hours. Roughly crumble the meringue and sprinkle on the tiramisu. Sprinkle with lime zest
With 6 people:
waiting time approx. 4 hours