ROYAL HAWAIIAN

Royal Hawaiian Hotel, Waikiki, ~1947.

COUPE
ETHANOL 14 G98 KCAL FROM ETHANOL4.2 OZ SERVED

SPEC

1½ oz · 45 mlGIN40 %
1 oz · 30 mlPINEAPPLE JUICE
½ oz · 15 mlLEMON JUICE
½ oz · 15 mlORGEAT

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 A PINEAPPLE LEAF

1 oz taken as 30 ml in the metric column.

STRENGTH // WORKED

Pre-batch3.5 oz mixed with ice, 0.6 oz of it pure alcohol
MeltShaken: +20 % of the pre-batch, +0.7 oz of water
Served3.5 + 0.7 = 4.2 oz in the glass
Strength0.6 ÷ 4.2 = 14.3 % ABV as served
Ethanol0.6 oz × 29.57 ml × 0.789 g/ml = 14 g · about 98 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.

METHYL ANTHRANILATE

FROM PINEAPPLE · the grape candy note

Formula
C₈H₉NO₂
Mass
151.16 g/mol
IUPAC
methyl 2-aminobenzoate

The grape-candy / Welch's-grape-juice aroma. Concord grapes carry it in concentrations no European wine grape (Vitis vinifera) approaches; American Vitis labrusca grapes, native to the northeastern US, hold methyl anthranilate as a signature. The "foxy" note in North American grape juice and artificial grape candy both come from the same molecule. Also used as the standard bird repellent on commercial fruit crops; birds find it intolerable.

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, pineapple, lemon and orgeat. It is the rare gin-based tiki drink: alpha-pinene from juniper meets benzaldehyde from almond orgeat and ethyl-ester pineapple, for a tropical-but-dry profile. Named for the Waikiki hotel.

PROVENANCE

Created at the Royal Hawaiian Hotel (the 'Pink Palace') in Waikiki, the prestige beachfront resort that hosted Hollywood celebrities through the post-war era. Gin-based tiki drinks are uncommon (most lean rum) but the Royal Hawaiian's bartender used what the hotel had in stock. The orgeat-pineapple-gin combination reads as a kind of cleaned-up Mai Tai with an unexpected botanical front.

GIN // NEARBY