Jack's Manual by J. A. Grohusko (1910, p.35)
| 0.5 portion | Scotch whiskey | base |
| 0.25 portion | French vermouth | modifier |
| 0.25 portion | Italian vermouth | modifier |
| 2 glasses | ice — cracked ice | other |
- Stir the Scotch whiskey and both vermouths with cracked ice until very cold.
- Strain into a bar glass and serve.
Ice: Cracked ice