Café Royal Cocktail Book by W. J. Tarling (1937, p.225)
| 0.5 unit | citrus juice — Lemon or Lime Juice | base |
| 0.5 part | rum — Daiquiri Rum | base |
| Soda water — Soda Water | dilution | |
| 1 teaspoon | sugar — Powdered Sugar | sweetener |
- Shake and strain into a tumbler, then fill with soda water.