Kash
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Please provide a link as proof.
I couldn't find anything like that... :o
Added 42 seconds later
We should also consider this option.
I just read about them briefly a while ago, and I somehow remembered that's what they're called. Although there are many recipes online, like this one:
Canned Eggs (Chinese Cuisine) Canned eggs are a true decoration of the Chinese table. Fresh duck and chicken eggs are placed in a clay pot on wheat straw and covered with bamboo shavings. Then, a decoction is made from soda, tea, salt, and pine needles, which is mixed with clay, ash, and lime. The cooled decoction is poured over the eggs and left to mature in a warm place for more than a month. Foreigners sometimes think these eggs are rotten, but this is a delicious and nutritious dish with a bluish-black white – one of the delicacies of Chinese cuisine.
These are harmless "Berber eggs," don't worry about it =)