How did Sai Baba know about Laxmichand's specific craving for the sweet 'khaja'?

Sai Baba demonstrated his omniscience in the story of Laxmichand's craving for khaja. As described in Chapter 28, Laxmichand, while on a pilgrimage in Shirdi, developed a strong desire for khaja after tasting it once. This eagerness remained unfulfilled in his mind. On the third day, Baba, without being told, specifically instructed his devotees to bring him a plate full of khaja as a food offering (naivedya). Later, during the meal, two bowls of khaja were served, satisfying Laxmichand's unspoken wish. This incident, where Baba seemingly read his mind, caused Laxmichand to marvel at the Master's inconceivable knowledge and fulfilled his attachment.