These noodles, also known as "longevity" or "forever" noodles, are a favorite form of pasta in North China’s Shanxi province, where the locals like to have them for birthdays as a way to guarantee a long life.

One distinct feature of these noodles is the one long strand of noodle in the boiling pot, a smooth, flexible strip. This type of noodle has a delicious taste just by itself, and it has to be eaten whole, at once sitting, in one gulp.