Classics
The manhattan is the canonical stirred whiskey cocktail and the reference point for hundreds of later riffs.
Reference: Jerry Thomas · 1887 · Open source page ↗ · Scale it, save it, or twist it below.

Ingredients
Dark, smooth, and all about whiskey spice meeting vermouth sweetness.
Taste: dark cherry · warm spice · vermouth herbs
Rye whiskey
50ml
Sweet vermouth
20ml
Angostura bitters
dashes
2ml
How to make it
Stir until glossy and evenly chilled.
Strain into a chilled Nick and Nora or coupe.
Drop in a single brandied cherry.
Source: Jerry Thomas, Bar-Tender's Guide (1887), LOC 07000656 p. 24, image 28 · A trusted classic — make it as-is, scale it, or twist it.
AI bartender