Delicately designed, overwhelmingly dense and often an acquired taste for many in the West, mooncakes are one of the most famous foods found in Chinese communities around the world this time of year. Every year on the 15th day of the eighth month of the lunar calendar, Chinese and other Asian cultures celebrate the Mid-Autumn Festival. Mooncakes are as important to festivities as turkey is to Thanksgiving and latkes are to Hanukah. The Mid-Autumn Festival – when the moon is at its fullest and brightest – became an official celebration in China during the Tang Dynasty (618-907 AD). The term "mooncake" was first found in 1274 AD in author Wu Zimu's "Book of Dreams," and the first cookbook on how to prepare mooncakes was published in 1792. While there are many variations of mooncakes, the most famous is the classic Cantonese version: a soft pastry filled with sweet lotus seed paste and savory salted duck egg yolk.