Mai Tai

• 1 oz aged Jamaican rum • 1 oz aged Martinique or blended rum • 0.75 oz fresh lime juice • 0.5 oz dry curaçao (e.g., Pierre Ferrand) • 0.25 oz orgeat • Shake with ice and strain into a rocks glass over crushed or pebble ice • Garnish: mint sprig and spent lime shell