TOM COLLINS

New York, 1870s.

HIGHBALL
ETHANOL 19 G131 KCAL FROM ETHANOL7.2 OZ SERVED

SPEC

2 oz · 60 mlGIN40 %
1 oz · 30 mlLEMON JUICE
½ oz · 15 mlSIMPLE SYRUP
3 oz · 90 mlSODA WATER

1 oz taken as 30 ml in the metric column.

METHOD

  1. 01SHAKE GIN + LEMON + SYRUP WITH ICE
  2. 02STRAIN INTO HIGHBALL OVER FRESH ICE
  3. 03TOP WITH SODA WATER
  4. 04GARNISH WITH LEMON WHEEL + CHERRY

1 oz taken as 30 ml in the metric column.

STRENGTH // WORKED

Pre-batch3.5 oz mixed with ice, 0.8 oz of it pure alcohol
MeltShaken: +20 % of the pre-batch, +0.7 oz of water
ToppedPoured after the melt, kept whole: soda water 3 oz, no alcohol
Served3.5 + 0.7 + 3 = 7.2 oz in the glass, 0.8 oz of it alcohol
Strength0.8 ÷ 7.2 = 11.1 % ABV as served
Ethanol0.8 oz × 29.57 ml × 0.789 g/ml = 19 g · about 131 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.

CITRAL

FROM LEMON · the lemon aroma

Formula
C₁₀H₁₆O
Mass
152.24 g/mol
IUPAC
(2E)-3,7-dimethylocta-2,6-dienal

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.

CHEMISTRY

Gin, lemon, sugar and soda. Alpha-pinene from juniper lifts through the citral of fresh lemon, and CO₂ from the soda amplifies the nose. ABV lands near 10% post-dilution: a long, refreshing pour that reads lighter than its gin base suggests.

PROVENANCE

The Tom Collins name took off with a hoax: an 1874 New York joke about a fictitious man named Tom Collins who had supposedly been bad-mouthing the asker, sending crowds to chase him through saloons. The drink itself descends from the John Collins, a gin punch credited to a headwaiter at Limmer's Hotel in London. The recipe traces to Jerry Thomas's 1876 Bartender's Guide, usually on Old Tom gin (the slightly sweetened style some credit with the name).

GIN // NEARBY