Jethro and I were asked to create a dish with “wow factor” for a group of scientists for an upcoming event. We wanted to craft a bite that’s first and foremost delicious, but also illustrates some of the hallmarks of modernist cooking: textural transformation, surprise, and use of unconventional techniques to refine and reinterpret something traditional. It also had to be practical and economical, since we’ll be serving nearly 200 people in two hours. This meant quick plating time, low portion cost, and minimal prep. After some brainstorming, we decided that a cryopoached (liquid nitrogen-frozen) puff would fit the bill. Jethro had already made the Fat Duck’s Cryopoached Green Tea Sour (which I recognized from Modernist Cuisine), but we wanted to make a version that was our own, and frankly, one that was simpler and cheaper.