Preheat the oven to 350 degrees
Begin to make the sponge cake
Beat the butter and sugar until creamy
Add in egg yolks, one by one, fully incorporating between each yolk
Add vanilla sugar
Mix in the flour a little at a time and baking powder
Add in the milk and continue beating until mixed well but take care to not over mix.
On a baking tray with a parchment paper spread the sponge cake into a rectangle
put aside in a cool place
Next we make the meringue
Beat the egg whites until stiff peaks form
Add sugar one tablespoon at a time until all is incorporated.
Spread the egg whites on top of the sponge cake batter fully covering the surface.
Sprinkle on the almonds slices to cover the meringue
Put the cake in the oven on the middle rack and bake for 20 minutes
When done remove it and let it cool completely
In the meantime, make the cream
Beat the heavy cream with the vanilla extract until stiff
Cut the cooled cake in half, spread cream on one layer add fruit on top if using and place the other half on top of the bottom half, with the almond side on top.
Serve the worlds best cake and watch it disappear.