2 fluid ounces vodka
1 fluid ounce cranberry juice
1 fluid ounce triple sec (orange-flavored liqueur)
2 teaspoons fresh lime juice
1 lime wedge
Fill a cocktail shaker with ice; add vodka, cranberry juice, triple sec, and lime juice. Cover and shake. Strain cocktail into a martini glass. Garnish with a lime wedge and cranberries.