Swallows’ Nest Soup
The nest of these birds is made almost entirely from their saliva, without any additions of foreign material. Consequently, their nests have become a delicacy in Chinese cooking. The high price of this dish is easily explained: collecting swallows’ nests is a somewhat dangerous occupation. The birds build their nests on sheer cliffs, where the risk of falling off is very high. The cost of this delicacy is thus around $3,000 per 1 kilogram.