About Town Cocktail Book by Joe Fitchett (1925, p.18) — About Town 1925
| 0.5 tangerine | Tangerine juice — Juice of half a tangerine | acid |
| 0.25 gill | gin | base |
| 1 teaspoonful | Grenadine | base |
| 0.5 gill | French vermouth — French Vermouth | modifier |
| Cointreau — Source says a little dash of Cointreau. | other |
- Fill the shaker half full of broken ice and add the ingredients.
- Shake well and strain into a cocktail glass.
Ice: Broken ice
This matters because it preserves a tangerine-and-cointreau gin sour in a 1925 social source.