One of a number of beers that were brewed strong with high hopping in order that they would keep, Russian Imperial Stout was brewed in Britain to be shipped to the Russian Imperial court. It tends to be strong, and needs some aging before it is ready to be drunk (4-6 months), but a well made example is a wonderful thick, potent experience.
Anyway, I’ve put a recipe on Hopville (this one came from Jamil Zainashef’s, Brewing Classic Styles).
A Storm Brewing 