Alfonso (Special)

from The Savoy Cocktail Book

• 1 Dash of Angostura Bitters
• 4 Dash of Dry Vermouth
• \frac{1}{4} Part of Dry Gin
• \frac{1}{4} Part of Sweet Vermouth
• \frac{1}{2} Part of Grand Marnier

Shake well and strain into cocktail glass.