How to make food and influence people

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When Nigerian cook Dunni Obata posts recipes and tips online they're seen by hundreds of thousands of followers, and her influence can be a big money-spinner. She tells Emily Thomas and fellow food bloggers, David Lebovitz and Monika Manchanda, how an unusual kitchen gadget sold out on eBay after she posted an endorsement on Instagram. (Photo: An instagram food blogger posts a photo; Credit: Getty Images)