The Wendy's Co. logo is seen outside the company's restaurant in the Omotesando district of Tokyo, Japan, on Wednesday, Dec. 28, 2011. Wendy's Co., the third-biggest U.S. fast-food chain, is adding goose-liver pate and truffles to burgers as it invests as much as $200 million on a return to Japan after leaving the country in 2009. Photographer: Tomohiro Ohsumi/Bloomberg via Getty Images
Foie gras (duck liver pate) is a food product made of the liver of a duck or goose that has been specially fattened. This fattening is typically achieved through gavage (force-feeding) corn, according to French law, though outside of France it is occasionally produced using natural feeding.