It's not often that something goes from urban myth to reality, but that's (sort of) the case with Neiman Marcus' chocolate chip cookies.

The myth part, detailed and debunked by Snopes, goes like this: a woman asks for the cookie recipe at the Neiman Marcus Cafe in Dallas and is told it will be "two-fifty," to which she concurs and says "add it to my tab." She gets the recipe. The kicker comes when she gets her credit card bill and has been charged two hundred and fifty dollars. Neimans is supposedly unwilling to return the money because "she's seen the recipe."

Urban legends are persistent, but that one never happened. What Neiman Marcus has cleverly done, though, is to capitalize on the myth by packing the ingredients for two dozen chocolate chip cookies in a glass jar, available to anyone for twenty. That's twenty dollars.