Hehe I am.

And that is why I mentioned it, not that I eat Vegemite out of the jar, I just eat it on toast (and even then spread very thinly over hot margarine). I'm not one of those strange people that eat it in cakes and confectionary, like that horrid Vegemite-flavoured chocolate Cadbury tried selling a few years back, no surprises that failed faster than an average day 1 Savage party.
Maybe it could be added as a "Bmite Sandwich' (thus avoiding name copyright issues) with the description "A mysterious alchemist from the southern islands apparently created the thick black spread that coats these otherwise ordinary slices of bread from yeast and various herbs and spices, that is something of an institution in his homeland, and hopes those in Eorzea may share his enthusiasm for the spread. So far there have been few takers..."
As for lamingtons, I'm sure coconut or something like it exists on Hydaelyn - there's plenty of tropical type areas around and I'm sure it wouldn't be too hard or lore breaking to implement.
I can even see the description for it: "Lamington: A cube of soft foamy spongecake with a centre of aldgoat cream and rolanberry jam, dipped in molten chocolate and coated in dissicated Thavnarian coconut. A delicacy of the southern islands, although a culinarian from Garlemald claims it was named after a certain Ilsabardian noble, but these claims are bogus..."

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