A fizzy gin cooler bursting with muddled berries, lemon, and herbal rosemary syrup.
5 steps, about 8 minutes start to finish.
Make rosemary simple syrup by simmering rosemary sprigs in equal parts sugar and water, then cool.
Muddle blackberries and blueberries in a shaker.
Add gin, lemon juice, and rosemary simple syrup with ice.
Shake well and strain into a glass over ice.
Top with sparkling water and garnish with a fresh rosemary sprig and berries.
“Make the rosemary syrup ahead so it has time to steep and cool, because a warm syrup would just melt your ice. Strain after shaking to catch the muddled berry seeds and skins, then top with the sparkling water at the end so the fizz survives.”