Liquid nitrogen ice cream
After reading the April 1994 article, “Chemistry and Physics in the Kitchen” in Scientific American, I made liquid nitrogen ice cream for the first time with Drs Barry Flower and Markus Schenkel.
Here is a link to the article: https://www.researchgate.net/publication/15021378_Chemistry_and_Physics_in_the_Kitchen. The photos were taken outside Electrical Engineering at the University of Sydney.