Mix plums with port wine, cover and leave to stand for about 2 hours. Line the bottom of a springform pan (26 cm Ø) with baking paper. Separate the eggs. Beat the egg whites, 3 tbsp. cold water and 1 pinch of salt until stiff, adding 100 g sugar. Fold in the egg yolks one by one. Sift flour, baking powder and cinnamon on top and fold in. Brush into the mould. Bake in the preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/gas: level 3) for about 15 minutes. Cooling down
Cut the cake base in half. Puree the plums and spread on the bottom cake layer. 2. put the bottom layer on top
Soak the gelatine in cold water. Coarsely chop the chocolate coating. Mix crème fraîche, 100 g sugar and vanilla sugar briefly. Squeeze the gelatine and dissolve at low heat. Stir in 2 tbsp. crème fraiche, then stir into the rest of the crème fraiche. Chill for about 8 minutes until it starts to gel. Whip 500 g cream until stiff. Fold into the cream with chocolate coating. Chill for approx. 25 minutes until it is a little firmer. Spread the cake in a dome shape. Chill for approx. 3 hours.
Whip 150-200 g cream until stiff, spread on the cake. Crumble the meringue, sprinkle on the dome and press down lightly. Decorate with icing sugar and pearls