Putin and Xi had multiple types of caviar to choose from to top their blini.
While caviar is most commonly associated with Russian cuisine, China has actually become the world's largest producer of the expensive fish eggs.
Sources: Bloomberg, Caviar Star
Xi has forged a strong relationship with Putin since he became president of China in 2012.
In fact, Xi's first foreign trip was to visit Russia in March of 2013. Two years later, Xi and his wife were guests of honor at the Moscow Victory Day Parade.
Sources: The New York Times, AP
Experts say the cozy display was meant to send a message to the west.
Alexander Gabuev, chairman of the Russia in the Asia-Pacific Program at the Carnegie Moscow Center think tank, told the Washington Post that Xi and Putin are "trying to signal" that "if the United States pushes too far, we are going to move closer to each other."
Source: Washington Post