Nathan Myhrvold, Ph.D. and Microsoft tycoon, is the creator of the comprehensive Modernist Cuisine cookbook. His crack research team set about building the ultimate hamburger. Each component was redesigned from scratch. A video at the link goes into some detail. The beef? It's taken out of the meat grinder in parallel strands, then frozen and sliced with a band saw into cross-sections so that the grains are cut evenly by the teeth of the consumer. After the meat is sliced, it's then seared with liquid nitrogen and immediately fried in hot oil. The result is a caramelized surface that keeps the juices inside without burning.
Link | Modernist Cuisine | Previously: The Drinkable Bagel