Grapefruits have been around since ancient times. They were first cultivated in Asia and then spread throughout Europe before arriving in North America.
In a cocktail shaker, stir together the vodka, orange liqueur, grapefruit and lemon juices, and 1 tablespoon crushed ice. To taste, add a little extra fruit juice or vodka. Garnish with grapefruit and strain into a martini glass that has been chilled. Enjoy!