Cherry liqueur gives this classic cocktail a holiday feel. For a twist, try using maraschino cherries soaked in bourbon or Luxardo—both are available on Amazon.
Combine whiskey, vermouth, and liqueur in a cocktail shaker. Fill shaker with ice; cover and shake vigorously until outside of shaker is frosty, about 15 seconds. Strain into a coupe or martini glass. Garnish with orange peel and cherry.