Can you narrate the story of Laxmichand's craving for khaja and how Sai Baba fulfilled it?

Certainly. The story from Chapter 28 of the Sai Satcharitra recounts how Laxmichand was on a pilgrimage in Shirdi. After tasting khaja (a sweet) on the first day, he developed a longing for it which remained unfulfilled the next day. On the third day, demonstrating his inconceivable knowledge, Sai Baba specifically instructed a devotee to bring a plate full of khaja as naivedya. Later, Baba himself expressed a desire for khaja prasad, and two bowls were brought. This fulfilled the lingering desire in Laxmichand's mind, filling his heart with joy and solidifying his faith in Baba.