This South American riff on the classic French 75 replaces gin with pisco (a South American brandy) and lemon juice with grapefruit juice. Latin Cocktail Party Recipes
Fill a cocktail shaker with ice. Add all of the remaining ingredients except the Champagne and the twist and shake well. Strain into a flute and top with the Champagne. Pinch the twist over the drink, rub it around the rim and discard.