The Chicago Tribune carried a story yesterday about the quest to officially document who invented deep-dish pizza. Like many a culinary origin story, this one remains shrouded in mystery.

The only paper trail indicates the pizza almost certainly came out of a 19th Century mansion built with lumber money at 29 E. Ohio St.—the restaurant now known as Pizzeria Uno. But the question of who exactly developed the concept remains a mystery despite the best efforts of the City of Chicago's official cultural historian.

But after proving that deep-dish came from the original Pizzeria Uno location, the question is who in that kitchen developed it: "It may have developed over time or been a collaboration," the paper says. "Samuelson and others tend to credit [Ric] Riccardo with the impetus for the idea and [Ike] Sewell with its fame."

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