The three-Michelin-star chef limits himself to serving waste food that is normally thrown away. On a mission to reduce the billions of tons of food sent to landfill, he uses wilted herbs, soggy celery, and overripe fruit to create his meals. His signature dish, which Bottura labels ‘the world’s most wasted ingredient’, is stale bread. As the award winning chef states, “what you think is food waste is just an opportunity to create something amazing.”