Claiming it originates from Serbia is straight up Serbian nationalist propaganda imo.
Hummus: https://www.bbc.com/travel/article/20171211-who-invented-hum...
halloumi is from Cyprus, but that's ... divided now: https://www.halloumicheese.eu/halloumi-cheese/the-history-of...
Wine plausibly originated in Georgia (the country) but it's so old, who can really tell: https://en.wikipedia.org/wiki/Wine
Arguing continuity of national borders over centuries in the Balkans is a fools game anyway.
I have edited, since as you can surely see, nitpicking over this border is, as stated above "a fools game anyway".
It might be unpalatable for some, but it is the truth.
Hear, hear.
Yet, the knowledge of the so called historical regions will get you far in Eastern and Southern Europe. The maps of voting behavior pop up here every now and then. And this is only one aspect.