Patrick Cook, the beverage director at Hyperion Public in Studio City, Calif., uses vodka to even out this blackberry sour, which seemed a little too ginny. “I was in love with the drink, [but] it was almost too botanical and becoming unbalanced,” he says. “I knew that I still wanted to have two ounces of spirit but maybe dial it back just a touch.” Tweaking the ratio to equal-parts gin and vodka did the trick.
This recipe originally appeared as part of “Use Vodka to Boost the Flavor and Body of Your Cocktails. This Is How You Do It.”
Muddle the blackberries in a shaker.
Add remaining ingredients and ice and shake until well-chilled.
Double-strain into a double Old Fashioned glass over fresh ice.
Garnish with a rosemary sprig and lemon peel.