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As a former baseball player, Josh Chetwynd has had his share of hot dogs. The 40-year-old Denver-based journalist leaves the ballpark behind, though, for his new book, How the Hot Dog Found its Bun, which features 75 short essays tracing the creation of everything from Caesar salad to whipped cream. Chetwynd spoke with the Post’s Melissa Leong about his smorgasbord of origin stories.
