Ingredient
Measure
London dry gin
50 ml (1⅔ oz)
Fresh lemon juice
25 ml (⅞ oz)
Sugar syrup (1:1)
12.5 ml (½ oz)
Crème de mûre (blackberry liqueur)
15 ml (½ oz)
To garnish
Lemon slice, a blackberry or two
Serves one. This is the IBA spec; bars nudge the liqueur up or down a little.