Chicago lifted a ban after nearly two years on the sale of foie gras, the fatty duck and goose liver dish, that is considered a French delicacy.
On Wednesday Chicago's city council repealed a prohibition on the sale of the fatty duck and goose liver dish.
"It's fabulous!" said chef Didier Durand. "Break out the champagne!"
Durand has been a vocal opponent of the ban on the French delicacy and, like a handful of other renegade restaurateurs, got around the ordinance by serving it for free.
"Yes, I was a duckeasy," he admitted furtively, nervous about potential problems with a pending liquor license.
The word is a play on Chicago's famed 'speakeasies,' which secretly sold spirits during the 1920-1933 Prohibition era when alcohol sales were banned in the United States.
"We also had a club called Turtle Soup where people were handing (us) turtle business cards and that meant they wanted foie gras," Didier told AFP.
The French delicacy, which is made by force-feeding ducks and geese so their livers become enlarged, has been the focus of an intense international campaign against animal cruelty.
Force-feeding birds has been banned in 15 countries, including Germany, Italy, Israel and Britain, according to animal rights activists Farm Sanctuary which runs the nofoiegras.org website.
But Chicago -- which garnered the nickname Hogtown because of its once sprawling slaughter houses -- was the only governmental body in the world to impose a ban on the actual sale of foie gras.