Step 1.
- Chill a coupe glass by filling it with ice water.
Step 2.
- In a shaker, combine absinthe, elderflower liqueur, fresh lemon juice, and simple syrup.
Step 3.
- Fill the shaker with ice and shake vigorously until well chilled.
Step 4.
- Empty the chilled coupe glass from ice water.
Step 5.
- Strain the cocktail mixture into the chilled coupe glass.
Step 6.
- Garnish with a lemon twist on the rim. Serve immediately.