If you’re looking for the ultimate whiskey cocktail, try this twist on the classic whiskey sour with the addition of a rosemary nectarine simple syrup!

Whiskey sour on cutting board on yellow surface

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Fiance has really loved whiskey for a while, but it’s taken me sometime to get on the bandwagon, even with a dad who loves the stuff, too. After a few frustrating instances of me just not enjoying what Fiance knew was an excellent whiskey, he decided I might need a softer approach. Something to help mask the overwhelming alcohol-y-ness of straight liquor. So he tried making me a whiskey sour. Let’s just say it was effective.

By now, I usually do enjoy a straight whiskey if it’s good, but a whiskey sour is still one of my favorites. In fact, the classic whiskey sour is going to be Fiance’s “signature cocktail” at our wedding! I wanted to do some experimentation with simple syrups and, better yet, I wanted to do a more seasonal version of the whiskey sour. Nectarines are just barely still in season and rosemary screams of the holidays, aaaaand I happened to have both on hand. It’s nice when my unwillingness to go to the store (which is about 100 feet out my front door) works out.

How to Make Simple Syrup

Have you made simple syrup before? If not, there’s nothing to fear. It’s simply (yes, bad pun intended) equal parts sugar and water. Combine those in a small saucepan over low heat and add rosemary springs and a cut up nectarine to steep. Stir the mixture fairly frequently. The goal isn’t really to cook the sugar because we don’t want a caramel flavor, just to dissolve it and cook off some of the liquid to make it syrupy.

Step by step process of making the nectarine rosemary simple syrup

So, let’s recap:

  • 1/2 cup water
  • 1/2 cup sugar
  • 1-2 rosemary sprigs, depending on size
  • 1 nectarine roughly diced

Simmer and steep for 5-10 minutes!

How to Make a Rosemary Nectarine Whiskey Sour

To make the cocktail, fill a rocks glass with ice and add an ounce of simple syrup, two ounces of whiskey, a half ounce of lemon juice, and give it a stir. We topped ours off with soda water, but this is totally optional. Play with the proportions to find the right sweetness and strength for your taste. Fiance likes his with more booze and lemon juice than me. I just like lots of sugar!

To serve, you’ll want Old Fashioned Whiskey Glasses. Garnish with a spring of rosemary.

Even though the food and treats around this time of year are fantastic, don’t forget about the drinks! There are so many fun cocktails and mocktails to be had.

You can also view this recipe as a step-by-step web story here.

Rosemary nectarine whiskey sours on yellow surface

P.S. Don’t forget to follow me on Instagram for more cocktail and recipe inspiration! @aducksoven

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Get the Recipe:

Rosemary Nectarine Whiskey Sour

Prep Time: 5 minutes
Cook Time: 10 minutes
Total Time: 15 minutes
If you're looking for the ultimate whiskey cocktail, try this twist on the classic whiskey sour with the addition of a rosemary nectarine simple syrup!


Rosemary Nectarine Simple Syrup:

  • 1/2 cup water
  • 1/2 cup sugar
  • 1 nectarine, pitted and cut into 1-inch pieces
  • 2 sprigs rosemary

Rosemary Nectarine Whiskey Sour:

  • Ice
  • 1 oz rosemary nectarine simple syrup
  • 2 oz whiskey
  • 1/2 oz lemon juice
  • Soda water, optional


Simple Syrup:

  • In a small saucepan over low heat, combine the sugar, water, nectarine, and rosemary sprigs.
  • Cook, stirring occasionally, until sugar has dissolved completely. Cook for another 5 minutes then remove from heat to cool.

Rosemary Nectarine Whiskey Sour:

  • Fill a rocks glass with ice. Top with simple syrup, whiskey, and lemon juice. Stir to combine.
  • If desired, top with soda water. Stir again.
  • Garnish with rosemary sprigs and nectarine slices to serve.


Play with the quantities of alcohol and simple syrup to figure out what you like best!
Course: Drinks
Author: Chelsea Cole
Calories: 673kcal, Carbohydrates: 137g, Protein: 2g, Fat: 1g, Saturated Fat: 1g, Sodium: 24mg, Potassium: 334mg, Fiber: 3g, Sugar: 132g, Vitamin A: 531IU, Vitamin C: 14mg, Calcium: 24mg, Iron: 2mg
Did you make this recipe?Mention @aducksoven on Instagram or tag #aducksoven.

Music in recipe video by Hook Sounds.