Ingredient
Measure
Gin (London dry)
50 ml (1¾ oz)
Fresh lemon juice
25 ml (¾ oz)
Rich sugar syrup (2:1 sugar to water)
15 ml (½ oz)
Chilled soda water, to top
about 50–75 ml (2 oz)
A common modern spec. Bartenders vary the lemon between 22 and 25 ml and the soda by taste; the builder below shows what each change does.