3.44 oz mixed with ice, 0.94 oz of it pure alcohol
Melt
Shaken: +20 % of the pre-batch, +0.69 oz of water
Served
3.44 + 0.69 = 4.12 oz in the glass
Strength
0.94 ÷ 4.12 = 22.7 % ABV as served
Ethanol
0.94 oz × 29.57 ml × 0.789 g/ml = 22 g · about 153 kcal from the alcohol alone
IN THE GLASS
α-PINENE
FROM GIN
Formula
C₁₀H₁₆
Mass
136.24 g/mol
IUPAC
2,6,6-trimethylbicyclo[3.1.1]hept-2-ene
The pine note in juniper berries, and the reason gin tastes like a forest. Co-distilled with the spirit during production. Found in actual pine trees, rosemary, basil, and a good London Dry. The "Christmas tree" smell of gin and the smell of a forest floor share a single 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.
The wormwood compound that got absinthe banned for ninety years over a panic that turned out to be mostly wrong. A GABA-A antagonist at high doses, but the doses in actual absinthe, both modern and historical, were always too low to cause the hallucinations the lore promised. Bans lifted between 1988 and 2007 once the chemistry was finally measured properly.
Tuxedo No. 2 with egg white. It is the shaken variation of the stirred Tuxedo, a postmodern addition. The egg white foam traps the thujone from absinthe at the surface.
PROVENANCE
An invented variation on the original Tuxedo cocktail. The egg-white addition transforms the stirred Tuxedo No. 2 into a shaken sour with foam cap. The recipe isn't historic but represents the modern bartending tendency to apply egg-white technique to historical recipes. Whether this counts as improvement or sacrilege is bartender's choice.