Prep Glass: Fill your Frappé or Highball glass with ice to chill it. Give it a quick stir and set it aside.
Add Mint: Place 8-12 fresh mint leaves in one hand and gently smack it with the other to release its aromas. Drop the mint into the shaker.
Add Anisette: Now, pour 1 bar spoon anisette liqueur over the mint.
Add Sugar: Add ½ oz simple syrup into the shaker.
Add Absinthe: Finally, measure and add 1½ oz Absinthe to the mix.
Shake Well: Fill the shaker with ice, close it and give it a good shake (10-15 seconds).
Strain: Discard the ice in the frappé or highball glass and use the cocktail strainer to strain the drink into the empty glass.
Add Ice: Fill the glass three-quarters full with crushed ice.
Add Club Soda: Top up with approx. 2 oz club soda (adjust to taste).
Stir: Using a bar spoon or long stirrer, stir gently to combine.
Add a Straw: Add a straw and top up with more crushed ice, forming a mounded top.
Garnish: Place a mint sprig next to the straw for garnish and serve immediately.