Step 1.
- Chill a champagne flute by placing it in the freezer or filling it with ice water.
Step 2.
- In a shaker, combine 1.5 oz of gin, 0.5 oz of fresh lemon juice, and 0.5 oz of simple syrup.
Step 3.
- Fill the shaker with ice and shake vigorously for about 10 seconds.
Step 4.
- Strain the mixture into the chilled champagne flute.
Step 5.
- Top off with 3 oz of chilled champagne or sparkling wine.
Step 6.
- Garnish with a lemon twist.