The round moon cakes, measuring about three inches in diameter and one and a half inches in thickness, resembled Western fruitcakes in taste and consistency. These cakes were made with melon seeds, lotus seeds, almonds, minced meats, bean paste, orange peels and lard. A golden yolk from a salted duck egg was placed at the center of each cake, and the golden brown crust was decorated with symbols of the festival. Traditionally, thirteen moon cakes were piled in a pyramid to symbolize the thirteen moons of a "complete year," that is, twelve moons plus one intercalary moon.