Step 1.
- Chill a cocktail glass by filling it with ice water.
Step 2.
- In a cocktail shaker, combine 1 ounce Irish cream, 1 ounce crème de menthe, and 1 ounce crème de cacao.
Step 3.
- Fill the shaker with ice and shake vigorously until well chilled.
Step 4.
- Empty the ice water from the cocktail glass and strain the mixture into the glass.
Step 5.
- Garnish with a fresh mint leaf.