As kids all over America anticipate their Halloween candy hoards, many will be hoping somebody in their neighborhood had the foresight to stock up on the hottest (or should that be coolest?) treat of the season: Ghirardelli’s new “Dubai-style” chocolate. Launched mid-October in anticipation of the annual spike in candy sales, the new product sold out within hours .

The Ghirardelli launch came just a few weeks after Lindt debuted its own version of the confection, proof positive that Dubai chocolate has gone completely mainstream. It is available in all of the groceries in my New York City neighborhood, displayed alongside Twix and M&Ms, rather than among the exotic offerings in the international section.

That casual ubiquity tells you everything you need to know about the most unex

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