Longtime phở aficionados may know that the word “phở” not only refers to the composed noodle soup, but also the flat rice stick noodles—or bánh phở—that are used in the dish. These noodles, which are similar to those used in pad Thai, can be leveraged in numerous ways. For this beloved street vendor in Hanoi, they form the base of phở xào, or stir-fried phở. While there are many different versions of stir-fried phở, this eatery has been offering some of Hanoi’s finest for over a decade. It’s made by…