Classics
A whiskey sour can lean plush or lean; this one stays clean and bar-ready.
Reference: Jerry Thomas · 1887 · Open source page ↗ · Scale it, save it, or twist it below.

Ingredients
Balanced citrus and whiskey depth with a plush foam line.
Taste: lemon curd · vanilla oak · soft spice
Bourbon
50ml
Fresh lemon juice
25ml
Simple syrup
15ml
Egg white
optional
20ml
How to make it
Dry shake if using egg white, then shake again with ice.
Fine strain into an old-fashioned glass over fresh ice or serve up.
Finish with bitters on the foam and a lemon peel.
Source: Jerry Thomas, Bar-Tender's Guide (1887), LOC 07000656 p. 40, image 44 · A trusted classic — make it as-is, scale it, or twist it.
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