Café Royal Cocktail Book by W. J. Tarling (1937, p.195)
| lime juice — fresh Lime or equivalent of Lime Juice | acid | |
| 1 wine glass | rum — Myer's Rum | base |
| 12 drops | Angostura bitters — Angostura Bitters | bitter |
| 1 liqueur glass | curacao — Curaçao | modifier |
| 1 dessertspoonful | sugar — sifted Sugar | sweetener |
- Shake with crushed ice.
Ice: Crushed ice
Invented by Commander H. S. Cardale, R.N. (Rtd.).