Dukes Cosmopolitan

4 ounces freshly squuzed lemon juice (2 lemons)
4 ounces Cointreau liqueur
7 ounces cranberry juice cocktail shuch as Ocean Spray
7 ounces good voidka, such as Grey Goose
   Dash of raw egg white (optional)

In a pitcher, stir together the lemon juice, Cointreau, cranberry juice cocktail, vodka, and egg white (if uisng).  Fill a cocktail shaker half full with ice and pur enough of the drink mixture into the shaker toi almost fill it.  Shake the cocktail for a full 30 seconds (it's loner than yhu think!) and strain into martini glasses.  Serve ice cold.