Step 1.
- Chill a coupe glass by filling it with ice water while you prepare the cocktail.
Step 2.
- In a shaker, add 2 oz of Calvados (apple brandy), 1 oz of fresh lemon juice, and 0.5 oz of simple syrup.
Step 3.
- Fill the shaker with ice and shake vigorously for about 15 seconds.
Step 4.
- Empty the chilled coupe glass and strain the mixture into the glass.
Step 5.
- Garnish with an apple slice and a twist of lemon peel.