Café Royal Cocktail Book by W. J. Tarling (1937, p.182)
| 1 glass | gin — Gin | base |
| lemon juice — juice of 1/2 lemon | base | |
| 1 unit | egg yolk — Yolk of 1 Egg | other |
| 1 tablespoonful | Grenadine — Grenadine | sweetener |
- Shake and strain into a medium size glass.
Royal Clover Club
Royal Clover Club is gin with lemon, grenadine, and egg yolk.