Kiev cake|Meringue cake

Merengue cakes: egg whites 240 gr (6 pcs); sugar 60 gr; sugar 160 gr; hazelnuts 180 gr; flour 50 gr; a pinch of salt. The diameter of the bakeware is 18 cm. Charlotte cream: yolks 6 pcs; milk 200 ml; butter 340 gr; sugar 150 gr; cocoa 2 tbsp; vanilla extract. Meringue for decoration: egg white 100 gr; sugar 200 gr; a pinch of salt; dark chocolate 50 gr.