blini or, sometimes, blin, is a Russian and Ukrainian pancake traditionally made from wheat or buckwheat flour and served with smetana, tvorog, butter, caviar and other garnishes. Blini are among the most popular and most-eaten dishes in Russia.
The main types of caviar are Beluga, Sterlet, Kaluga hybrid, American osetra, Ossetra, Siberian sturgeon and Sevruga. The rarest and costliest is from beluga sturgeon that swim in the Caspian Sea, which is bordered by Iran, Kazakhstan, Russia, Turkmenistan, and Azerbaijan.