A salty dog is a cocktail of gin, or vodka, and grapefruit juice, served in a highball glass with a salted rim. The salt is the only difference between a salty dog and a greyhound. Vodka may be used as a substitute for gin; nevertheless, it is historically a gin drink.
How To Make
Shake vodka (or gin) and grapefruit juice in cocktail shaker. Strain into a salt-rimmed highball glass.