What’s in the Soup?
Before you get grossed out by the thought of eating this soup, which is made with bird saliva, you should know that this is considered the most elegant in Chinese cuisine. The soup contains swallows’ nests, which they build with saliva.
Source: healthzap
The reason this soup is so expensive, at a cost of $3,000 per kg, is due to all the hard work that goes into preparing the dish. If you didn’t know, swallows construct their nests on cliff faces, which means having to climb them to pick the nests. This all begs the question: is the soup worth it?