|1 fl oz||Cognac|
|1 fl oz||Rittenhouse bottled-in-bond straight rye whiskey|
|1 fl oz||Martini Rosso vermouth|
|2 dash||Angostura or other aromatic bitters|
Difford's Guide remains free-to-use thanks to the support of the brands in blue above.
Frothy topped yet hardcore.
Recipe adapted from Jerry Thomas' 1862 The Bartenders Guide.