BRONX

Old Waldorf Astoria, New York, ~1900.

COUPE
ETHANOL 18 G126 KCAL FROM ETHANOL3.6 OZ SERVED

SPEC

1½ oz · 45 mlGIN40 %
½ oz · 15 mlDRY VERMOUTH18 %
½ oz · 15 mlSWEET VERMOUTH16 %
½ oz · 15 mlORANGE JUICE

1 oz taken as 30 ml in the metric column.

METHOD

  1. 01SHAKE ALL INGREDIENTS WITH ICE
  2. 02DOUBLE-STRAIN INTO A CHILLED COUPE
  3. 03GARNISH WITH AN ORANGE TWIST

1 oz taken as 30 ml in the metric column.

STRENGTH // WORKED

Pre-batch3 oz mixed with ice, 0.77 oz of it pure alcohol
MeltShaken: +20 % of the pre-batch, +0.6 oz of water
Served3 + 0.6 = 3.6 oz in the glass
Strength0.77 ÷ 3.6 = 21.4 % ABV as served
Ethanol0.77 oz × 29.57 ml × 0.789 g/ml = 18 g · about 126 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.

GENTIOPICROSIDE

FROM DUAL VERMOUTH

Formula
C₁₆H₂₀O₉
Mass
356.33 g/mol
IUPAC
(3S,4R)-4-ethenyl-3-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-4,6-dihydro-3H-pyrano[3,4-c]pyran-8-one

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.

D-LIMONENE

FROM ORANGE · citrus peel oil

Formula
C₁₀H₁₆
Mass
136.24 g/mol
IUPAC
(4R)-1-methyl-4-prop-1-en-2-ylcyclohexene

An orange rind, squeezed, throws a spray that catches the light. That's d-limonene boiling off. It's roughly 95% of orange peel oil by mass, and the molecule that puts the "orange" in orange anything. Used industrially as a green solvent because the chemistry that dissolves citrus oils also dissolves greasy machinery. The expressed-peel garnish on a cocktail is delivering vaporized limonene to the rim of the glass.

CHEMISTRY

Gin, two vermouths and orange juice. It uses the half-and-half vermouth format with fresh orange juice. D-limonene from orange bridges juniper and vermouth herbs.

PROVENANCE

Johnnie Solon, head bartender at the Old Waldorf Astoria, is credited with creating the Bronx in the early 1900s, though an 1895 hotel wine list already names a Bronx Cocktail. By his own account he named it for the unfamiliar beasts of a recent Bronx Zoo visit; the cocktail was his answer to a head waiter whose customer doubted he could invent a new one. The Bronx was wildly popular pre-Prohibition, and still ranked third, behind the Martini and Manhattan, in a 1934 list of famous cocktails; it faded from that position later.

GIN // NEARBY