Café Royal Cocktail Book by W. J. Tarling (1937, p.196)
| 0.25 part | sweet vermouth — Italian Vermouth | base |
| 0.5 part | tequila — Tequila | base |
| 0.25 part | dry vermouth — French Vermouth | modifier |
- Shake.
Garnish: Squeeze lemon peel on top.
Sombrero is tequila with Italian and French vermouth.
Café Royal Cocktail Book by W. J. Tarling (1937, p.196)
| 0.25 part | sweet vermouth — Italian Vermouth | base |
| 0.5 part | tequila — Tequila | base |
| 0.25 part | dry vermouth — French Vermouth | modifier |
Garnish: Squeeze lemon peel on top.