[desdiv]

Do you happen to have a source for that?

My understanding is that Napoleon's Continental System caused a shortage of cocoa in continental Europe, so chocolatiers had to substitute in hazelnuts. This became Gianduja[0], which later were modified to become Nutella.

[0] https://en.wikipedia.org/wiki/Gianduja_(chocolate)

[eru]

Isn't that basically exactly the same story as what the comment you replied to said?

[kgwgk]

Except for the taxes part :-)

[drcode]

I had read it somewhere, but I agree it may not have been accurate, because I can't easily find a citation