Hi April, yes they definately sound like the 'iron eggs' you describe. Is it possible to make them yourself, or do you need special equipment/access to a secret recipe? From a google search, it seems the eggs are boiled and then dried 3 times until they turn jet black, the liquid they are boiled in apparently contains fermented bean sauce, soy, sugar, and various spices, also I read that they come in different flavours ranging from sweet to spicy. Does anyone else have any information? Thanks