A salty dog is a cocktail made with gin or vodka, and grapefruit juice and is usually served in a highball glass with a salted rim. The salt is the only distinction between a salty dog and a greyhound. It is believed to date back to the 1920s.
The Salty Dog was probably created in the 1950s, possibly by a gentleman named George Jessel, as a way to dial down the grapefruit’s tart and bitter notes.
Wet the rim of a highball glass with coarse salt.
Fill the glass with ice, then add the gin (or vodka) and grapefruit juice and stir gently to mix.
Garnish with a grapefruit slice.