In a cocktail shaker, add the vodka, fresh lemon juice, and simple syrup.
Fill the shaker with ice and shake vigorously for about 10-15 seconds.
Strain the mixture into a chilled Champagne flute.
Slowly pour the Champagne into the glass, filling it to the top.
Optionally, garnish with a lemon twist for an extra touch of elegance.
Notes
For the best flavor, use freshly squeezed lemon juice and high-quality vodka. If you prefer a sweeter cocktail, you can adjust the amount of simple syrup to taste.