1.5 oz Grey Goose Vodka
½ oz St-Germain Elderflower Liqueur
1 oz fresh lime or lemon juice
½ oz simple syrup
Splash of Schweppe’s Club Soda

For the garnish:
Lime or lemon wheel slice

Instructions:
Fill a cocktail glass with ice and add all ingredients, using the club soda to top it off. Lightly stir to chill.