1 ounce Cognac or Gin
1/2 ounce fresh lemon juice
1/2 ounce simple syrup
2 ounces Champagne
Lemon twist

Pour Cognac or Gin, lemon juice and syrup in a cocktail shaker with ice; shake.
Strain into chilled flute or tall glass.
Top with Champagne.
Garnish with lemon twist and enjoy