"As you cook, some ingredients vaporize, and these volatilized particles can attach themselves to the walls of the baking cavity," Tisi says. "The next time you use the oven, these bits get caught up in the convection currents and deposited on the food, which adds flavor." Over time, he says, more particles join the mix and mingle with the savory soot from burned wood or coal — the only fuels worth using — to create a flavor that you can't grow in a garden: gestalt, if you will.
Author Joe Brown is partial to the New York style, and describes how he brings home six pies every time he visits. Link -via Digg
(image credit: David Owen)