According to this article snails eggs are becoming popular as an unusual luxury ingredient. The eggs which have been dubbed “white caviar” appear to be increasingly popular in Spain where snails are already farmed for their eggs. At around 1,800 Euros (around £1,600) for a kilo there are not cheap but they are quickly becoming a prized delicacy. The eggs are hand selected before being washed and purified. They are then sterilised and lightly salted. It takes as much as four hours to fill a 50g tin as each egg is selected by hand using tweezers. If you fancy trying some Harrods have recently started selling small tins of the product . Apparently they have an earthy flavour.