0.65 oz × 29.57 ml × 0.789 g/ml = 15 g · about 105 kcal from the alcohol alone
IN THE GLASS
VANILLIN
FROM BOURBON · from oak barrel aging
Formula
C₈H₈O₃
Mass
152.15 g/mol
IUPAC
4-hydroxy-3-methoxybenzaldehyde
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.
The bitter from gentian root, used across Campari, Aperol, sweet vermouth, Angostura, and most amari. Bitter compounds activate TAS2R taste receptors that evolved to detect plant alkaloids. The same machinery that makes broccoli taste bad to children also makes a Negroni taste like an adult ordered it.
Lemon's defining note: technically a mix of two geometric isomers (geranial and neral) that read as the same aroma to the nose. Lemon peel, lemongrass, lemon verbena, and Indian chai all carry it. In cocktails it's what a lemon twist contributes that lemon juice can't: the volatile expressed from the oil glands, not the acid from the pulp.
Equal parts bourbon, Aperol, Amaro Nonino and lemon. Vanillin from oak meets gentiopicroside from two bitter liqueurs, giving a layered bitter-citrus backbone with high flavor density.
PROVENANCE
Equal parts bourbon, Aperol, Amaro Nonino, and lemon juice. Created at the request of Toby Maloney for a summer menu at The Violet Hour in Chicago; the first version used Campari. Named after the M.I.A. song 'Paper Planes,' which Ross had on repeat while working on it. One of the few modern cocktails to enter the canonical equal-parts pantheon alongside the Negroni and the Last Word.
