Two Irish whiskey smashes on a marble tray.

Irish Whiskey Smash

  • Author: Amanda McGrory-Dixon
  • Prep Time: 5 minutes
  • Cook Time: 5 minutes
  • Total Time: 10 minutes
  • Yield: 1 drink 1x


Whether you need a fun St. Patrick’s Day cocktail or an everyday sipper, this Irish whiskey smash is always refreshing with its bright mint and tart lemon.



For Simple Syrup
1 cup water
1 cup sugar

For Irish Whiskey Smash
810 fresh mint leaves, plus a sprig for garnish, optional
1 ounce simple syrup (see note)
1/2 lemon, cut into wedges
2 ounces Irish whiskey
Club soda, for topping, optional


  1. To make the simple syrup, simmer the 1 cup sugar and 1 cup water in a small saucepan over medium-high heat. Stir frequently to dissolve the sugar. As soon as the sugar dissolves, remove from heat. Allow to cool.
  2. In a cocktail shaker, add the mint leaves, simple syrup and lemon. Muddle until the lemon breaks down and releases its juice. Add Irish whiskey and ice. Place the top of the cocktail shaker on and shake vigorously for at least 15 seconds.
  3. Strain into an ice-filled glass. If desired, top with club soda and garnish with a mint sprig. Enjoy!


  • You can also use store-bought simple syrup.
  • Nutritional information is only an estimate. The accuracy of the nutritional information for any recipe on this site is not guaranteed.
  • Category: Cocktails
  • Method: Stove-Top
  • Cuisine: Irish


  • Serving Size: 1 drink
  • Calories: 225
  • Sugar: 20
  • Sodium: 5
  • Fat: 0
  • Saturated Fat: 0
  • Unsaturated Fat: 0
  • Trans Fat: 0
  • Carbohydrates: 21
  • Fiber: 0
  • Protein: 0
  • Cholesterol: 0

Keywords: Irish whiskey cocktail, whiskey smash, Irish whiskey smash