DIAMOND FIZZ

Savoy Cocktail Book, London, 1930.

HIGHBALL
ETHANOL 22 G157 KCAL FROM ETHANOL6.3 OZ SERVED

SPEC

1½ oz · 45 mlGIN40 %
¾ oz · 22 mlLEMON JUICE
½ oz · 15 mlSIMPLE SYRUP
3 oz · 90 mlCHAMPAGNE12 %

1 oz taken as 30 ml in the metric column.

METHOD

  1. 01SHAKE GIN + LEMON + SYRUP WITH ICE
  2. 02STRAIN INTO A HIGHBALL OVER FRESH ICE
  3. 03TOP WITH CHAMPAGNE
  4. 04GARNISH WITH A LEMON TWIST

1 oz taken as 30 ml in the metric column.

STRENGTH // WORKED

Pre-batch2.75 oz mixed with ice, 0.6 oz of it pure alcohol
MeltShaken: +20 % of the pre-batch, +0.55 oz of water
ToppedPoured after the melt, kept whole: champagne 3 oz, +0.36 oz of alcohol
Served2.75 + 0.55 + 3 = 6.3 oz in the glass, 0.96 oz of it alcohol
Strength0.96 ÷ 6.3 = 15.2 % ABV as served
Ethanol0.96 oz × 29.57 ml × 0.789 g/ml = 22 g · about 157 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.

TARTARIC ACID

FROM CHAMPAGNE · the dominant grape acid

Formula
C₄H₆O₆
Mass
150.09 g/mol
IUPAC
(2R,3R)-2,3-dihydroxybutanedioic acid

The dominant acid in grapes and the reason wine tastes sharp instead of flat. Forms crystals ("wine diamonds") when bottled wine gets cold; harmless, sometimes filtered out, sometimes left in as a mark of authenticity. Without acid, wine is sugar water.

CHEMISTRY

A Gin Fizz with Champagne instead of soda. It is the Fizz family's wedding-reception variant: Champagne's tartaric acid and yeast autolysates add complexity the soda version does not have.

PROVENANCE

Published in Harry Craddock's 1930 Savoy Cocktail Book as a Fizz variant; Craddock's instruction was 'use champagne instead of plain soda water.' The drink was meant as an upmarket Gin Fizz for hotel-bar service. Modern bartenders use it as the bridge between cocktail culture and wedding-reception culture; a near-twin of the more famous French 75 (neither takes egg white), served long over ice.

WINE & SPARKLING // NEARBY