I've probably commented on this before, Jack but can't see a mention in this thread so apologies if I've missed a post.

I am not aware of a NZ product but was aware of the oz Vegemite vs UK Marmite debates. I got "brother in oz" to send me a jar of the "proper" Vegemite. As far as I'm concerned, that while a touch different in texture and taste, the two are interchangeable and if say I was in Australia, I'd not be on a quest to find Marmite.

I think it's all "beer sludge" and can only guess that NZ's own version would also be similar.

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Possibly funny btw though, the way some products can change. I can't remember what it was but some sort of probably globally Nestle add milk drink. "niece in oz" managed to get some of the Australian stuff and a puzzled me did find a wikipedia page saying it used different "recipes" for different areas...

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Also btw, is it me or did Cadburys Dairy Milk and their buttons change taste after what started with an American take over? Maybe a change in my palate but they seem to have a sort of "sickliness" in taste these days compared with what I remember.