Step 1.
- Chill a coupe glass by placing it in the freezer or filling it with ice water.
Step 2.
- In a cocktail shaker filled with ice, combine the absinthe, elderflower liqueur, and fresh lemon juice.
Step 3.
- Shake well until the mixture is chilled.
Step 4.
- Strain the mixture into the chilled coupe glass.
Step 5.
- Top with a splash of tonic water for effervescence.
Step 6.
- Garnish with edible flowers for a whimsical touch.