It is a very attractive truffle.It's made of the usual ingredients — cocoa butter, sugar, chocolate — with a not-so-typical addition. Thirty grams of dried tomatoes from Nigeria. And it was served at the World Economic Forum last week in Davos, Switzerland, with a very specific goal in mind: "to raise awareness on food waste and hunger," as stated in a press release. That's a big job for a bonbon — and it's the reason for the tomatoes. According to U.N. sources, up to 75 percent of the 1.5 million tons of tomatoes harvested in Nigeria each year are "lost." That can mean a number of things, from rotting in the field to falling off the truck on the way to market.

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