Recipes for Mixed Drinks by Hugo R. Ensslin (1917, p.34) — Ensslin 1917
| 0.5 drink | Irish whiskey — Bushmills Irish Whiskey | base |
| 0.25 drink | Chartreuse — Source OCR is slightly damaged but the quarter-drink reading is well supported by context. | modifier |
| 0.5 drink | Italian vermouth — Italian Vermouth | modifier |
- Shake well in a mixing glass with cracked ice.
- Strain and serve.
Ice: Cracked ice
This matters because it gives us a clean pre-war Tipperary checkpoint before later standardization narrows how the drink is remembered.
Its identity lies in the Irish-whiskey and Chartreuse relationship rather than in garnish or theatrical service.