2.26 oz mixed with ice, 0.87 oz of it pure alcohol
Melt
Stirred: +15 % of the pre-batch, +0.34 oz of water
Served
2.26 + 0.34 = 2.6 oz in the glass
Strength
0.87 ÷ 2.6 = 33.3 % ABV as served
Ethanol
0.87 oz × 29.57 ml × 0.789 g/ml = 20 g · about 142 kcal from the alcohol alone
IN THE GLASS
GUAIACOL
FROM MEZCAL · the smoky phenolic note
Formula
C₇H₈O₂
Mass
124.14 g/mol
IUPAC
2-methoxyphenol
The smoke molecule. In peated scotch from burning peat over the malted barley; in mezcal from the underground roasting pit; in barbecue, smoked paprika, and bonfires. One molecule covering campfire, Islay whisky, and good carnitas. The brain files all three under "fire."
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 aldehyde that makes cinnamon taste like cinnamon, roughly 90% of cinnamon bark oil by volume. Triggers TRPA1 (the "wasabi receptor") at high doses, which is why Red Hots burn and a cinnamon stick steeped too long in mulled wine turns acrid. Cassia cinnamon (the common grocery-store kind) carries more than the milder Ceylon variety.
Reposado tequila, mezcal, agave, mole bitters and Angostura. Phil Ward's 'double-agave' Old Fashioned carries guaiacol from mezcal's smoked piña and ethyl octanoate from the reposado. Mole bitters add cacao and cinnamon that bridge the two agaves.
PROVENANCE
Phil Ward created the Oaxaca Old Fashioned at Death & Co in 2007. The 'double-agave' approach (reposado for backbone, mezcal for smoke) was novel in cocktail bartending at the time; both spirits had been treated as solo bases or absent altogether. Ward's printed spec used Angostura alone; the Bittermens Xocolatl Mole bitters many bars now add were also new, created by Avery Glasser in 2007 and released in 2009, and they lean into the chocolate-agave pairing.