Yes , Vlaanderen is the Dutch speaking part of Belgium.
While Wallonië is the French speaking region.

So , Vlaamse chocolate with whipped cream (= slagroom) - I don't know about that.
I don't eat too much candy and Sugar products ...

Yes , I am maybe a little boring - because I don't drink and don't eat too much chocolate ...

But you have the different Vlaamse vlaai with cream - a sort of cake with different fillings ...
A well known delicatesse for many people ...