Also the dispute this generates! You wouldn't believe how many friendships are torn apart over the question of whether it is "die Nutella" oder "das Nutella".
It is "die Nutella", just so we are clear!
My point is that, whenever you want to use a brand name like "Nutella" in a specific context and you're unsure about the gender, you can just use a compound word with a clearly defined gender instead.
On a semi-related note: in the Rhineland gendered articles are also used colloquially when talking about people: "Der Mark", "Die Steffi" and so on. I was born into this but I'm unsure how I feel about it after finding out it's actually non-standard in the rest of Germany.
