Chill a coupe glass.
Combine the gin, dry vermouth, sweet vermouth and orange juice in a shaker.
Add two dashes of Angostura bitters.
Add ice and shake hard for 10 seconds.
Fine-strain into the chilled coupe and express an orange twist over the top.
A Prohibition-era variation on the Bronx, recorded in the Savoy Cocktail Book. The name is a joke about the then-novel American federal income tax: the bitters are the deduction. Shake it briskly enough to aerate the orange juice.
My Bar Shelf läser ditt skåp och visar varje cocktail du kan göra av det du redan har - inklusive Income Tax.