Make sponge by mixing eggs and sugar, then add flour and whisk gently. Bake at 200'C for 30 minutes, rest for a night before cutting

Make lemon curd with zest of 2 lemons, 117 g of lemon juice, egg yolks, butter and sugar heated in one pan till they get the thick substance. Cool down before using.

Make Swiss meringue with 4 yolks, lemon juice and sugar.