This article is from the Douglas Adams FAQ, by Nathan Hughes firstname.lastname@example.org with numerous contributions by others.
This is a VERY abridged recipe of the original, which you can read
at http://www.umd.umich.edu/~nhughes/dna/docs/pggb.html. I highly
recommend you seek out the real thing, it's a much better read.
1) 1 oz. EverClear
2) 4 oz. Bombay Sapphire or Jeremiah Weed
3) 4 oz. Cold Wild Turkey
4) 2 oz. Herredura Tequila
5) 5 oz. Rum
6) 1 worm from bottle of Mezcal
7) 2 oz. Gatorade
This makes one approximately 18 ounce Pan Galactic Gargle Blaster. The
reason this drink seems so large is that Zaphod Beeblebrox has two heads,
so when he created it, it came out to 9 ounces per head, so both were