480 mlHendrick’s or other good-quality gin (see note)120 mlcrème de mûre (see note)375 ml(1½ cups) lemon juiceTo serve:crushed iceTo serve:soda waterBlackberry syrup150 gmblackberries125 gmcaster sugar
For blackberry syrup, combine ingredients and 125ml water in a saucepan and bring to the boil. Cook over high heat for 5 minutes, cool, then blend in a blender until smooth. Strain through a fine sieve, set aside.
Combine blackberry syrup, gin, crème de mûre and lemon juice in a jug, stir to combine.
Half fill highball glasses with crushed ice, then pour gin mixture in, to taste. Top with extra ice, add soda water to taste and serve immediately.
Note Hendrick’s gin and crème de mûre, or blackberry liqueur, are available from specialty bottle shops.