Combine: In a cocktail shaker, combine the absinthe, elderflower liqueur, lemon juice, and simple syrup.
Shake: Shake vigorously with ice for about 15 seconds.
Strain: Strain into a highball glass filled with ice.
Top: Top with soda water.
Garnish: Garnish with a lemon wheel or a sprig of mint.
This cocktail is a modern twist on the classic Absinthe Drip, offering a balanced and refreshing experience. The floral notes of elderflower liqueur complement the anise flavors of absinthe, while the citrusy burst of lemon juice adds a bright acidity.