1⁄2 oz Dry vermouth
1⁄2 oz Bénédictine
1 twst Orange peel (as garnish)
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
Posted by mako on 3/19/2022
Created by
First described by Hugo R. Ensslin
Year
1917
Is an
authentic recipe
Curator
Not yet rated
Average
4 stars
(6 ratings)
YieldsDrink
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Comments

Very nice indeed. Didn't have an orange twist, so added a dash of Angostura Orange bitters.