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Some may argue that KFC was a pioneer of fast food spicy chicken sandwiches, with its Singapore locations introducing the Zinger, KFC's first spicy chicken sandwich in 1993. Today, its chicken ...

Next, we tried the chicken-and-doughnut basket. On their own, the doughnuts were a bit soggy and altogether unremarkable. I might not be alone. One KFC employee said the sandwiches are so popular ...