Adapted from rookielibations.
- 1 1/2 ounces Pimm's No. 1 Cup
- 1 ounce Irish whiskey (such as Jameson or Bushmills)
- 1/2 teaspoon lemon juice
- 2 dashes Angostura bitters
- Ginger ale
- Lemon twist
Combine Pimm's, whiskey, lemon juice, and bitters in a highball glass filled with ice. Top with ginger ale and and stir gently. Garnish with lemon twist and serve.