SOUTHSIDE

In print by 1917; origin disputed.

COUPE
ETHANOL 19 G131 KCAL FROM ETHANOL3.9 OZ SERVED

SPEC

2 oz · 60 mlGIN40 %
¾ oz · 22 mlLIME JUICE
½ oz · 15 mlSIMPLE SYRUP
8 leavesMINT

1 oz taken as 30 ml in the metric column.

METHOD

  1. 01MUDDLE MINT IN A SHAKER WITH SIMPLE SYRUP
  2. 02ADD GIN + LIME + ICE, SHAKE
  3. 03DOUBLE-STRAIN INTO A CHILLED COUPE
  4. 04GARNISH WITH A MINT SPRIG

1 oz taken as 30 ml in the metric column.

STRENGTH // WORKED

Pre-batch3.25 oz mixed with ice, 0.8 oz of it pure alcohol
MeltShaken: +20 % of the pre-batch, +0.65 oz of water
Served3.25 + 0.65 = 3.9 oz in the glass
Strength0.8 ÷ 3.9 = 20.5 % 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.

MENTHOL

FROM MINT · the cooling sensation

Formula
C₁₀H₂₀O
Mass
156.27 g/mol
IUPAC
(1R,2S,5R)-5-methyl-2-propan-2-ylcyclohexan-1-ol

A cyclic alcohol that hijacks TRPM8, the same cold-sensing receptor that fires when the skin actually hits a cool surface. The "cooling" sensation is neurological, not thermal; the drink isn't cold, the nerves just think it is. Peppermint carries the most; a mojito gets a fraction of the real thing from muddled mint leaves. Same chemistry powers menthol cigarettes, cough drops, and the post-shave aftershock of anything labeled "icy."

CITRAL

FROM LIME · 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, lime, sugar and mint. It is the Mojito's gin cousin: alpha-pinene from juniper, carvone from mint and citral from lime, with no soda and no rum. It was in print before Prohibition and a speakeasy standard during it.

PROVENANCE

Origin disputed among Long Island's South Side Sportsmen's Club, New York's 21 Club and Chicago's South Side. A South Side Fizz was in print by 1917 (Hugo Ensslin); the 21 Club, a speakeasy, later served it to wealthy patrons. Chicago lore connects the drink to Al Capone's Southside gang; the story goes that the gin was so harsh in 1920s Chicago that the mint-and-lime was necessary to make it drinkable. The 21 Club version is more elegant; the Chicago version more straightforward.

GIN // NEARBY