Step 1.
- Chill a cocktail glass by filling it with ice water and setting it aside.
Step 2.
- In a shaker, combine 2 oz of whiskey, 1/2 oz of sweet vermouth, and 1/4 oz of orange liqueur.
Step 3.
- Add ice to the shaker and shake until well-chilled.
Step 4.
- Discard the ice water from the cocktail glass and strain the mixture into the chilled glass.
Step 5.
- Garnish with a lemon twist, expressing the oils over the drink before placing it on top.