Cream butter, 75 g sugar, 1 packet vanilla sugar and salt with the whisk of the hand mixer. Stir in the eggs one after the other, alternating with 1 tablespoon of flour each. Mix remaining flour and baking powder, stir in 4 tbsp. cream briefly.
Put the dough into a greased and flour-sprinkled springform pan (approx. 18 cm Ø) and smooth it down. In a preheated oven, 2nd rail from below (electric cooker: 175 °C/ circulating air: 150 °C/ gas: s.
manufacturer) bake for about 30 minutes. Cover if necessary in the last 5 minutes. Take the cake out of the oven and let it cool down on a cake rack for 2-3 hours.
Coarsely chop 140 g chocolate and melt over a warm water bath, let cool for 10-15 minutes. Beat 75 g cream until stiff and chill. Stir mascarpone and 1 packet of vanilla sugar until creamy.
Add the liquid chocolate at once and stir in. Fold in whipped cream.
Remove the cake from the pan and cut through horizontally twice. Spread about 1/3 of the mascarpone chocolate cream on the bottom cake layer, place the middle layer on top. Mix the jelly and carefully spread on the middle cake layer.
Cover with the third bottom. Spread the rest of the mascarpone cream all around the cake, chill for about 30 minutes.
Coarsely chop 60 g chocolate, place in a pot with 60 g cream and coconut oil. Melt at low heat while stirring. Allow the glaze to cool for 10-15 minutes, spread over the cake, chill for about 2 hours.
Beat the egg whites until stiff, adding 60 g sugar at the end, continue beating for 1-2 minutes. Stir in starch and lemon juice. Pour meringue mixture into a piping bag with a large perforated spout.
Decorate the cake with tuffs. Briefly scorch with a crème brûlée burner. Chill for about 1 hour.