Crystal mushroom soup, a type of soup, was a menu item offered at the Bistro De Lothal restaurant found on the planet of Lothal around 5 BBY. This soup was offered as the initial course in a four-course meal of the day, priced at 125 credits, and the bistro promoted this offering on promotional materials they created.
The first appearance of crystal mushroom soup occurred in Rebel Journal by Ezra Bridger, a reference book authored by Daniel Wallace that was published in 2014.