This traditional Russian soup is known to have existed as far back as the 15th century, when it was called ‘kalya’. Today, famous with the name Rassolnik, the authentic Russian dish is prepared mainly with veal and lamb kidneys (or pork and beef kidneys), pearl barley, sorrel leaves and some pickled cucumbers! Yes, you heard it right. A ‘pickle soup’ it is!
No matter how bizarre it may sound, but this bribing Slavic blend is definitely a bowl of happiness. Rassolnik or rassoljnik, as it is known, varies from family to family and region to region. Some include barley and potatoes and is so thick, a spoon can stand up in it. Others make it with prime cuts of meat instead of offal.
Despite of all the variations, the belief behind the recipe stays common, i.e. it is the one of the easiest and surest way of curing hangovers! This is due to the fact that this savory soup helps the body to hold water and counteract the dehydration produced by over-imbibing, which causes hangovers.