Mooncakes are a Chinese pastry traditionally eaten during the Mid-Autumn Festival. Typical mooncakes are round or rectangular pastries, measuring about 10 cm in diameter and 4-5 cm thick. A thick filling usually made from lotus seed paste is surrounded by a relatively thin (2-3 mm) crust and may contain yolks from salted duck eggs. Mooncakes are rich, heavy, and dense compared with most Western cakes and pastries. They are usually eaten in small wedges accompanied by Chinese tea.