Café Royal Cocktail Book by W. J. Tarling (1937, p.206)
| 2 dashes | Angostura bitters — Angostura Bitters | base |
| 0.5 part | Scotch whisky — Scotch Whisky | base |
| 0.5 part | sweet vermouth — Italian Vermouth | modifier |
- Stir up and strain into cocktail glass.
Garnish: Squeeze lemon peel on top.