Step 1.
- Fill a shaker with ice.
Step 2.
- Add the gin, elderflower liqueur, and lemon juice to the shaker.
Step 3.
- Shake gently to combine.
Step 4.
- Strain into a chilled champagne flute.
Step 5.
- Top with sparkling water.
Step 6.
- Garnish with edible flowers or a sprig of mint.