01 -
Fill a shaker with ice.
02 -
Add gin, vodka, lime juice, and simple syrup.
03 -
Shake for about 15 seconds until the shaker turns cold.
04 -
Strain everything into a chilled champagne flute.
05 -
Pour the sparkling wine over the top.
06 -
Garnish with a lime wheel or twist. Serve immediately.