Café Royal Cocktail Book by W. J. Tarling (1937, p.162)
| 0.5 part | gin — dry gin | base |
| 2 dashes | orange bitters | base |
| 0.25 part | dry vermouth — French vermouth, N.P. | modifier |
| 0.25 part | Strega | modifier |
- Stir and squeeze orange peel on top.
Invented by Jack Powell.