Grapefruit lovers: if you haven't discovered it yet, get to know a cocktail called the Salty Dog.

No, it's not a strange concoction with hot dogs, but the cousin to the classic Greyhound. Both the Greyhound and Salty Dog combine fresh-squeezed grapefruit juice with vodka. The Salty Dog, however, is served in a salt-rimmed glass similar to a margarita.

For more on this drink – which is perfect for National Grapefruit Month! — read ahead.