2 1/2 oz. Finlandia Vodka - (more) 1 oz. Creme de Cassis - (more) 1 oz. Dry Vermouth - (more) dash(es) Cointreau - (more) Cointreau - (more)
Shake with ice and strain into a highball glass. Float Cointreau. Garnish with an orange peel and blackberries.