Rasstegai
Rasstegai is a type of Russian pirog with a hole in the top.History
The dish was very popular in Tsarist Russia.Information
The filling usually contains fish, but may also contain meat, liver, rice or mushrooms.
The hole of rasstegai is used to add broth to the stuffing.The dish is mentioned in Nikolai Gogol's Dead Souls and Vladimir Gilyarovsky's Moscow and the Muscovites.