The recipe for the Pan Galactic Gargle Blaster from the Hitchhiker's Guide to the Galaxy is as follows:

Take the juice from one bottle of that Ol' Janx Spirit. Pour into it one measure of water from the seas of Santraginus V (Oh, that Santragian seawater! Oh, those Santragian fish!) Allow three cubes of Arcturan Mega-gin to melt into the mixture (it must be properly iced or the benzene is lost). Allow four litres of Fallian marsh gas to bubble through it, in honor of all those happy hikers who have died of pleasure in the Marshes of Fallia. Over the back of a silver spoon float a measure of Qalactin Hypermint extract, redolent of all the heavy odors of the dark Qalactin Zones, subtle, sweet, and mystic. Drop in the tooth of an Algolian Suntiger. Watch it dissolve, spreading the fires of the Algolian Suns deep into the heart of the drink. Sprinkle Zamphuor. Add an olive. Drink . . . but . . . very carefully . . .

The methods and ingredients used in the preparation of the Pan Galactic Gargle Blaster vary slightly when mixing the drink on Earth. This recipe describes suitable ingredient substitutions for those that cannot be found on this planet.