Oreo was not an original concept

Food scientist Sam J. Porcello invented the newer version of the Oreo. He was one of the world's foremost experts on cocoa and helped develop the extra indulgent chocolate and white chocolate-covered Oreo.

The original recipe for Oreo cookies contained lard (pork fat). With the changing climate of the low-fat 1990s, the lard was replaced, and the cookie became kosher and unexpectedly also vegan.