Café Royal Cocktail Book by W. J. Tarling (1937, p.231)
| 1 lemon | lemon juice — Lemon Juice | acid |
| 2 measure | Calvados | base |
| Soda water — Syphon Soda | dilution | |
| 3 teaspoon | Grenadine — Grenadine | sweetener |
- Shake and strain into a tumbler, then fill with syphon soda.