Step 1.
- Fill a shaker with ice, and add 1.5 oz of Cognac.
Step 2.
- Add 0.5 oz of freshly squeezed lemon juice.
Step 3.
- Add 0.5 oz of simple syrup (1:1 sugar to water ratio, dissolved).
Step 4.
- Shake the mixture well until chilled.
Step 5.
- Strain the mixture into a champagne flute.
Step 6.
- Top with 2 oz of chilled champagne.
Step 7.
- Garnish with a twist of lemon peel. Serve immediately.