Brooklyn BBQ is spreading to every corner of the world—Colombia, Spain, Panama, Sweden, England, and Japan—looking like it came straight out of Williamsburg. But why aren't these countries taking cues from Texas or Kansas City? After sitting down at the restaurant Pork in Barcelona, a long menu describing different preparations of pork is set before me. There is charcuterie made from Iberian pigs, various types of dry-aged sausages and chorizos, and slow cooked and grilled pork. Everything is sold by weight. There are also hanging Edison bulbs and the beer, brewed in conjunction with a cult brewer in Liverpool, is...