Beat eggs with sugar until fluffy.
Add vanilla, lemon juice and rind.
Then add sifted flour with baking powder.
Pour the mixture into a greased tart pan.
Bake in 180° C pre-heat oven about 20 minutes.
Let cool the tart.
for the seven minute frosting:
Place sugar, egg white, cream of tartar and water to a bowl in the top of a double boiler.
Set bowl over pan of simmering water. (bain maire)
Beat with electric hand held mixer gradually increasing speed for 7 minutes.
Beat in vanilla.
The frosting can be made 2-3 hours ahead and chilled to have a good consistency to spread.
for top:
You can change the fruits with fresh berries.
Skin bananas and cut the fruits in thin slices.
to assemble:
Remove the tart from tart pan and reverse it.
Spread the sven minute frosting on the reverse surface of the cake and place your desired fruit slices.
Finally decorate the center of the cake with crushed hazelnuts to give richness.