PHILADELPHIA — Candy corn — invented ages ago in Philadelphia, according to legend — may be even more polarizing than that other autumnal aroma, pumpkin spice. The police department in Fort Collins, Colorado, once said (only partly in jest?) that this tricolored staple of Halloween should be a crime. Many others, to judge by the millions of pounds of the stuff sold each year, can’t get enough. “One of the best,” says rap star Rico Nasty. It turns out there’s a science to our love-hate relationship with the ubiquitous sweet, once dubbed “Satan’s earwax” by food writers at the Takeout media site…
