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You can find good food in most medium-sized and larger cities but you have to seek it out. And the local treasure may surprise you. Food trucks have been great for finding tasty fare the last decade or so. That said, I do think there are two standout foods that are ubiquitous in America although they vary by region. 1) bbq; 2) the sandwich. Behold the great American sandwich in all its varied forms: https://www.nytim…
Really top-notch American barbecue really doesn't get enough credit. The best BBQ places deliver a head-trip, pleasure-overload, "this is so good I'm going to die" experience that matches any haute cuisine you can find.
I think BBQ will eventually get it's due. We're seeing a lot of chefs take common, cheaper dishes and make them more upscale and interesting to larger audiences and foodies. One of the best dishes I ever had was dinuguan [1] at Paul Qui's (Top Chef winner) restaurant in Austin.
I don't think Americans have a huge problem with food as the parent suggests. I'm biased of course but I prefer it how it is. We don't need a singular identity. We have places like Napa, Vegas, NY and San Fran that stack up against any city in the world, even though our history is short. We attract top talent from everywhere and the melting pot delivers vastly different experiences. You can come to the US and visit New York, New Orleans and the Pacific Northwest and get amazing food with completely different styles and cultural identities.
Why do we need a unified food? Why is that important?