St. Patrick's Day is coming up, and we could all use a festive cocktail to celebrate the occasion. Enter this Irish whiskey smash. With its smooth Irish whiskey, tart lemon and bright mint, this cocktail is a refreshing sipper to enjoy on this spring holiday.

Two Irish whiskey smashes on a marble tray.

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Ingredients
Step-by-Step Instructions
Expert Tips and FAQs
Perfect Pairing
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Of course, don't feel like you can only drink this Irish whiskey smash for St. Patrick's Day. Smashes are one of my favorite types of cocktails, and this recipe works perfectly well year-round.

Essentially, a smash is a cocktail that uses a liquor, fruit, herb and sweetener. I'm a sucker for anything with fresh herbs, so a good smash is my perfect kind of drink. All right, it's time to start mixing.

Bonus: If you love this whiskey cocktail, give my Irish sour, Irish mule and Irish old fashioned a try as well. They're wonderful additions to your party cocktail menu.

An aerial view of the two Irish whiskey smashes.

Ingredients

Let's begin by gathering our ingredients. We obviously need Irish whiskey along with lemon, fresh mint and simple syrup. If you’d like, you’re also welcome to give it a fizzy topper from club soda, though it’s optional.

Irish whiskey: My go-to Irish whiskey is Jameson.
Fresh lemon juice: For the perfect brightness.
Fresh mint: This adds a lovely refreshing flavor and fragrance.
Simple syrup: To give the perfect touch of sweetness.
Club soda: This is optional, but it's nice if you'd like a bubbly finish.

A quick note about the simple syrup -- while you can buy simple syrup, I like to make my own because it’s incredibly easy. Simply combine equal parts water and sugar and simmer until the sugar dissolves.

Making simple syrup ahead of time is ideal to give it time to cool. That said, I’ve been in a pinch and had to make simple syrup on the spot. Just use plenty of ice in your cocktail shaker, and you’ll be fine.

Step-by-Step Instructions

And now to start shaking. Let's grab our cocktail shaker and add a half lemon cut into wedges with a little simple syrup and muddle until the lemon breaks down.

We then add some fresh mint leaves and gently muddle again. The mint only needs a few twists. If we overbruise the mint, it can turn bitter.

From here, we pour in the bourbon, add ice, pop on the top and give it a good shake. Strain into ice-filled glasses and top with a little club soda if you want some fizz. Honestly, it's delicious both with or without fizz, so you do you.

And that's it! Easy, huh? Take a sip and enjoy.

A bottle of Jameson with two Irish whiskey smashes

Expert Tips and FAQs

Purchase lemons that feel plump and have some give when you press them. Rock-hard lemons are a sign that they're dried out.
Firmly roll the lemon on the countertop under the palm of your hand before juicing. This helps release the juice.
If you don't have a muddle, a sturdy wooden spoon will do the trick.
Before garnishing with the mint, place the sprig in the palm of your hand and then quickly clap your other hand on top. This step helps release the oils to make for a more fragrant drinking experience.

Perfect Pairing

I love pairing whiskey and cheese together. With all the nuances in the different types of whiskey, you can play around with so many pairing options. For Irish whiskey, I love it with Brie and havarti, and I have just the recipe: a Parmesan-crusted Brie and havarti grilled cheese with apricot, avocado and fresh herbs. You can never go wrong with a fancy grilled cheese.

With Irish whiskey and its triple distillation, you generally get a smooth sipper with a touch of vanilla and honey. Both Brie and havarti pair well with sweet flavors, and I love how the nutty havarti works with slight spice of the Irish whiskey. That tart lemon from the smash also helps cut through the rich cheeses for a nice palate cleanser, and the mint is delightful with the herbs and apricot.

Of course, you very well may be drinking this cocktail with your St. Patrick's Day celebration. If that's the case, you're probably looking for something with more of an Irish flair. Try my Guinness Irish stew, smoked corned beef, Irish chocolate cake, stout brownies or Baileys mousse on the side.

If you need a fun St. Patrick's Day cocktail or just a refreshing sipper any day of the year, I hope you try this Irish whiskey smash.

Cheers!

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Irish Whiskey Smash

Ingredients

Step-by-Step Instructions

Expert Tips and FAQs

Perfect Pairing

Looking for More Cocktails?

📖 Recipe