Meet the new generation of private chefs who serve up their recipes online—with a side of celebrity intrigue https://www.economist.com/culture/2025/08/11/private-chefs-are-spilling-the-culinary-secrets-of-the-super-rich?taid=698dae0b2970a800019f0f6c&utm_campaign=editorial-social&utm_content=discovery.content&utm_medium=social-media.content.np&utm_source=twitter