Mix cookie crumbs with butter and press into the bottom of the pan. Refrigerate. Wrap the bottom of the herring with baking paper and foil (to prevent leakage).
Preheat the oven to 150 degrees.
For the filling: Mix cream cheese, white cheese and vanilla paste in a bowl. Add egg yolks and sugar and mix until combined. Set aside.
Heat the sweet cream in the microwave or in a saucepan and pour over the white chocolate, wait 2 minutes and mix until smooth. Add to the cheese bowl and mix well. Sift the cornflour and flour into the mixture and mix.
.To assemble: Remove the pan from the fridge and pour the cheese mixture over it.
Bake for about 20 minutes, reduce the oven to 100 degrees and bake for about 40 more minutes. Remove the cakes from the oven, cool and put in the fridge overnight.
9. To make the whipped cream – In a mixer bowl with a whisk attachment, beat the mascarpone, heavy cream, powdered sugar, and vanilla until smooth. Drizzle the whipped cream around the cake and decorate with fruit.