Can you summarize the story about the devotee, the Purandare family, and the eggplant dishes for Baba?

Certainly. Chapter 9 tells a story where a devotee gave eggplants to the Purandare family, who were traveling to Shirdi. She had given specific instructions for them to prepare two dishes for Sai Baba: a mashed dish called 'bharit' and crisp fried slices called 'kachrya'. The family arrived in Shirdi and offered the 'bharit' during the meal after the Arati. Baba enjoyed it and then specifically asked for the 'kachrya'. This caused a problem because it wasn't the season for eggplants, and the attendants didn't know where the dish had come from. The incident beautifully illustrates Baba's omniscience and his deep connection to his devotees' loving intentions.