America's favorite cookie was produced in lower Manhattan. It was introduced on March 6, 1912. Over a century later, the Oreo is America's best-selling cookie.. It is not my favorite cookie. There. I said it. If you offer me an Oreo, I will eat it with thanks and gratitude, but if I am buying cookies for myself, they will not be Oreos. Better yet, I may buy a jar of peanut butter and make my own cookies!
Possibly a little known fact is that Oreo was introduced to compete with Sunshine Bakery's Hydrox cookies which had been on the market for a few years. The popularity of the Hydrox doubtless impelled the people at the National Biscuit Company, later Nabisco, to horn in on the market. Perhaps this demonstrates two truths. One, imitation is the sincerest form of flattery; and two, an imitation good enough and backed by deep enough pockets can drive the original from the market.
In keeping with the fanaticism of the health nuts, Oreo recently changed their recipe to eliminate trans fats. I mean, there is nothing America needs more than a "healthful" cookie. Of course, any benefit could be offset by the introduction of Oreo Double Stuf. But I don't know that for sure.
The original Oreo Biscuit, as it was called at the time, sold for twenty-five cents a pound and came in a decorative tin. The company has expanded the product line greatly, offering numerous variations on the original.
Statistical data from Wikipedia.