|1 1⁄2 fl oz||Bourbon whiskey|
|1⁄2 fl oz||Noilly Prat Extra Dry|
|1⁄2 fl oz||Martini Rosso vermouth|
|1⁄2 fl oz||Freshly squeezed lemon juice|
|1⁄2 fl oz||Pasteurised egg white|
Difford's Guide remains free-to-use thanks to the support of the brands in blue above.
Bone dry - I prefer with the addition of half spoon sugar syrup.
This vintage cocktail is thought to have been originally made at New York's Hoffman House.