Mooncakes from heaven: Hong Kong's sweet obsession It is one of Hong Kong's most treasured food traditions: the buying, giving and eating of "mooncakes" to mark mid-autumn festival, celebrated in Chinese communities around the world next month. Bakeries and supermarkets are already packed with boxes of the dense pastries, traditionally filled with a heavy sweet concoction of lotus seed and egg yolks. But not all mooncakes are made equal. IMAGES AND SOUNDBITES