2 1/2 oz of finlandia vodka (or Vodka)
1 oz of creme de cassis (or blackcurrant-flavored liqueur)
1 oz of dry vermouth
1 dash of cointreau orange liqueur (or orange liqueur)
Pour all ingredients into a cocktail shaker half-filled with ice cubes. Shake well, and strain into a highball glass. Float some extra Cointreau on top. Garnish with blackberries and a twist of orange peel, and serve.