Reserve 6 strawberries. In the work bowl of food processor, add remaining strawberries and lemon juice. Pulse well to combine.
In a large cocktail shaker, combine ice, strawberry mixture, Basil Simple Syrup, and vodka. Shake vigorously until very cold, 20 to 30 seconds. Divide into 6 chilled glasses, and top with sparkling wine. Garnish with reserved strawberries, lemon slices, and basil, if desired.
Recipe by Louisiana Cookin' at https://louisianacookin.com/strawberry-basil-lemonade-cocktail/