0.9 oz × 29.57 ml × 0.789 g/ml = 21 g · about 147 kcal from the alcohol alone
IN THE GLASS
CAFFEINE
FROM ESPRESSO · the alertness molecule
Formula
C₈H₁₀N₄O₂
Mass
194.19 g/mol
IUPAC
1,3,7-trimethylpurine-2,6-dione
A purine alkaloid that blocks adenosine receptors in the brain, so the tiredness signal never lands. Coffee, tea, cocoa, mate, guarana, kola: all unrelated plants, all evolved caffeine independently as an insecticide. Humans inherited a tolerance for what bugs can't handle.
Bourbon's fingerprint, extracted from the charred American oak the law requires for aging. Same molecule as the vanilla bean's signature, so a well-aged bourbon legitimately tastes like vanilla. Chemistry, not metaphor. Cognac, aged rum, tequila reposado all extract vanillin from oak too. Different barrels, same molecule.
Vodka, coffee liqueur, espresso and sugar. The crown is physics, not cream. A hard shake whips air and the espresso's dissolved CO₂ into a pale collar that settles on top. Caffeine carries the bitterness; vanillin the aroma.
PROVENANCE
A young model at the Soho Brasserie reportedly asked for something that would 'wake me up and fuck me up.' Bradsell built it on the espresso machine beside his station, with vodka and coffee liqueur. Originally called the Vodka Espresso; the Martini coinage came later when V-shaped glassware caught on for shaken cocktails.