fusion food
This is a subject very close to my heart as I love to eat and my husband does too.
About Chinese food, true that you can't get the exact same ingredients in the U.S. as you do in China or Vietnam (where my parents are from) and so for most of my childhood, I ate only my mom cooking. However, her techiniques and ingredients were pretty authentic since I have traveled and eaten in Hong Kong, San Fran, Seattle, Chicago, NY, Rome (very, very bad), St. Louis and the "new Hong Kong" Richmond B. C. All the food in "real" Chinese restuarants taste similar. The same dishes and the same authentic flavours. For example in Richmond B.C. my family had a little reunion, with aunts and uncles from all over including Hong Kong and Guam. They recognizes the food as true Cantonese and loved it. If someone is going to make a fusion dish it definately needs to be advertised as such, so there are no suprises. Basically, authentic food can be had anywhere with the right ingredients and the right touch.
Recently, I ate at an Italian ristorante in Torino and they had a creative menu, Mild, Medium, Hand Extreme. They took tradional Italian recipies and twisted them to the various degrees ( mild to extreme) They presented the dishes with a bite of the traditional and then the twist. It was mind blowing. One dish I loved was a traditional pea soup make with fresh spring peas, the twisted version was a pea soup mousse, served lukewarm. They also had sushi variations of carpaccio etc.. I should have gotten a menu.
I think giving diners a choice of fusion vs. traditional is nice that way they have the ultimate choice.