French Blonde Cocktail

Recipe from Saveur
Yield: one drink

Ingredients:
2 oz. White Lillet
1 oz. gin
2 oz. fresh grapefruit juice
1/2 oz. elderflower liqueur (I used St. Germain)
A few dashes lemon bitters

Instructions:
1. Pour all ingredients into a shaker (or a ball jar), filled with ice
2. Strain liquid into a fancy glass
3. Garnish with a lemon rind