Coarsely chop the chocolate coating and melt it with coconut oil over a hot water bath. Put the cornflakes in a freezer bag, seal well and chop coarsely with a dough roller. Mix with the couverture. Line the bottom of a springform pan (26 cm Ø) with baking paper. Pour the mixture into the mould and press it to a flat base.
Put the base in a cool place for about 30 minutes. Wash the currants, drain well. Strip 250 g currants from the panicles. Soak gelatine in cold water. Stir mascarpone, yoghurt and sugar until smooth. Dissolve the gelatine and stir into the cream. Whip cream until stiff, fold into the cream with the currants. Pour onto the base and spread loosely. Leave to set in the fridge for at least 2 hours. Cut the cake from the tin.
Dissolve the gelatine and stir into the cream. Whip cream until stiff, fold into the cream with the currants. Pour onto the base and spread loosely. Leave to set in the fridge for at least 2 hours. Cut the cake from the tin. Decorate with the remaining currants and mint. Dust with icing sugar
waiting time approx. 2 1/2 hours