Instructions
Stir; strain; cocktail class, squeezed orange peel
History
First shows up in Hugo Ensslin's 1917 as "Brain Storm" as well as in the 1930 Savoy Cocktail Book as "Brainstorm" which is the more common rendering. Older recipes calls for two dashes each of Bénédictine and French vermouth and most modern recipes call for ½ oz each (since a dash during these period is often quite ambiguous and typically larger).
Cocktail summary
Created by
First described by Hugo R. Ensslin
Year
1917
Is an
authentic recipe
Reference
Irish whiskey, Dry vermouth, Bénédictine, Orange peel
PT5M
PT0M
Cocktail
Cocktail
1
craft, alcoholic
3.9
10
Very nice indeed. Didn't have an orange twist, so added a dash of Angostura Orange bitters.