Ingredients
Gin →1.5 oz / 44 mL
Crème de Cassis →0.75 oz / 22 mL

Union Jack is a classic gin cocktail - cassis in support, shaken cold. The proportions are the point: recognizable structure, not kitchen-sink improvisation.
Established named drink with documented provenance.
26.7%
Total ABV
after dilution
One perfect serve
Add the Union Jack measures to a shaker with hard ice.
Shake until the mixture is well chilled and integrated.
Strain into a coupe and garnish as preferred.
Bar-quality calculator
Finished batch
21.6 oz
≈ 8 serves
Added water
3.6 oz
20% dilution
Estimated cost
$12.96
$1.62 per serve
Scaled live from the standard recipe. Bottle estimates assume 750ml.