Café Royal Cocktail Book by W. J. Tarling (1937, p.232)
| 0.75 part | dry vermouth — French Vermouth | base |
| Soda water — Syphon Soda Water | dilution | |
| 0.25 part | crème de cassis — Cassis | modifier |
| 1 large piece | ice — Ice | other |
- Pour into a tumbler, add one large piece of ice, and fill up with syphon soda water.
Ice: Ice