Café Royal Cocktail Book by W. J. Tarling (1937, p.193)
| 0.33 part | lemon juice — Lemon Juice | acid |
| 0.33 part | Cointreau | base |
| 0.33 part | Scotch whisky — Scotch Whisky | base |
- Shake and strain.
Silent Third is equal parts Cointreau, lemon juice, and Scotch whisky.
Café Royal Cocktail Book by W. J. Tarling (1937, p.193)
| 0.33 part | lemon juice — Lemon Juice | acid |
| 0.33 part | Cointreau | base |
| 0.33 part | Scotch whisky — Scotch Whisky | base |