New Delhi, April 15 -- It's said that a bowl of soup made of bovine bellies and legs can cure ulcers, hangovers and an assortment of other ailments - if you're courageous enough to try it.

And Dimitris Tsarouhas, the owner of a restaurant in the Greek city of Thessaloniki that specializes in "patsa" is striving to register the soup with UNESCO as a unique and traditional dish of Greece that harks back to the time of Homer's epic poem "The Odyssey."

That has conjured up a new dispute with age-old rival Turkey, which also claims the soup as its own. Greeks and Turks have been feuding over everything culinary from coffee, stuffed grape leaves and even the famous baklava - the legacy of life under centuries of Ottoman rule. Now, the Turks a...