Outside the Nederlander Theater last Saturday night, hundreds of eager ticket holders lined up for the new Broadway musical “Shucked.” What exactly was the plot of the show? “I just know it is about corn,” said Roe Woolf, who was visiting from Nashville. “Who doesn’t like corn?” said Danielle Chamberlin, who had come in from Clayton, N.J.Food has long been a staple of Broadway musicals. The in-house merchandise store sells key chains, magnets, hats and tote bags all adorned with corn. The bar serves Corn Nuts, candy corn and corn-themed cocktails like Honk if You’re Corny and Corn to Be Wild.

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