Once Kylie had taken her first bite of the soup that Stephen had prepared for her, she attacked the bowl with vigor and, before Stephen knew it, it was empty. “It’s really good!” she exclaimed as she ladled out a second portion for herself. “Did you add any unique spices into it? I have never tasted anything so good!”

Stephen, who was sitting opposite her, who hadn’t taken a single bite from his bowl, laughed. “There is a quite unique spice in it,” he exclaimed. “It is called ...