Line the bottom of a springform pan (26 cm Ø) with baking paper. Break 1 bar of chocolate into pieces. Melt it with 60 g butter in a hot water bath, let it cool down a bit. Separate 5 eggs. Beat 5 egg yolks and 30 g sugar until creamy. First beat in 2 tablespoons of chocolate butter, then gradually add the rest. Whip 5 egg whites until stiff, pour in 30 g sugar. Fold into the chocolate cream
Paint into the mould. Bake in the preheated oven (electric oven: 175 °C/circulating air: 150 °C/gas: level 2) for 25-30 minutes. Let them cool down
Soak gelatine in cold water. Break 1 bar of chocolate into pieces. Melt with 60 g butter in a hot water bath. Squeeze out the gelatine and dissolve in it, stirring vigorously. Separate 5 eggs. Beat 5 egg yolks and 30 g sugar until creamy. First beat in 2 tbsp. chocolate butter, then gradually add the rest. Whip 5 egg whites until stiff, then pour in 30 g sugar. Fold into the chocolate cream. Place the cake ring around the cake base. Spread the mousse on top. Chill for about 3 hours. Decorate the cake with chocolate decoration, cocoa and mint leaves