The name of this cake is at best misleading and this thick slice of marshmallow covered in chocolate is nothing special to look at it. But this is actually one of the best Russian sweets. Birds’ Milk was the first cake to be patented in Soviet times. This official recipe was developed by a group of confectioners under the leadership of Vladimir Guralnik – a legend in the world of Russian sweets – who was the chief dessert-maker at the Prague restaurant in Moscow. The Birds’ Milk recipe is derived from French marshmallows, but with several important amendments.