A perfectly balanced cocktail of cranberry juice, a splash of lime, vodka and orange liquor, the Classic Cosmo is one of my favorite ways to celebrate an evening with the girls.
Fill a cocktail shaker halfway with ice. Add vodka, Grand Marnier, cranberry juice, and lime juice. Shake well for 10 seconds, until cocktail is chilled. Pour, straining out the ice, into martini glass. Serve immediately.