Which country is the origin of fugazza?

The word fugazza is an Argentinian derivation of the word focaccia, thanks to the significant Italian influence on Argentinian cuisine. But like its name, fugazza is a uniquely Argentinian dish. Fugazza is a kind of pizza, though it lacks a tomato-based sauce and has a thicker, airy crust. It's always topped with a pile of sweet onions, and sometimes with mozzarella cheese as well, and cooked in a deep pizza pan or cast-iron skillet.

A version of fugazza with a thicker crust (sometimes a double crust) and lots of mozzarella cheese in addition to the onions is called fugazetta.

Fugazza makes a great appetizer or main dish. You can add other toppings of course - olives, herbs, ham, etc. The onions are typically not pre-cooked in Argentina, but sometimes it is topped with caramelized onions.