Whiskey Sour 
        Whiskey Sour

Whiskey Sour

5.0 (2)
$34.95
/

Few cocktails are more satisfying than a good whiskey sour. One of the oldest cocktails, this classic combination of citrus, whiskey, and sugar is easy to mix — but can be difficult to perfect.

What’s so tricky? Nailing the balance between sweet, sour, and boozy flavors.

But Proof Syrup’s got you covered. With Whiskey Sour Proof Syrup, you’ll shake up a perfectly balanced sour in seconds — every single time. Just add your favorite bourbon, shake, and serve.

Free shipping on orders $99+

Ingredients: Water, Oleo Saccharum, Sugar, Lemon Oil, Orange Oil, Bitters Nutrition: Serving Size: 0.5 oz (15 mL). Calories: 35. Sugar: 9g. Potassium: 7mg.

Get free shipping on orders $99+

Typically ships in 1-2 days (excluding weekends and holidays). For more info, see our Shipping Policy.

Delicious Cocktails in Seconds

Premium, All-Natural Ingredients

Perfection Every Single Time

Drinks Made With Whiskey Sour

Absolutely Love It! Takes the work and measurements doubt out of the perfect Manhattan ♥️

- Carolyn B.

I love this syrup for my old fashioned! The sweetness of the syrup and the orange flavor pair well with my favorite higher proof bourbons and make for a very enjoyable drink.

- Patrick K.

Ok, I did purchase the Proof Maple Bacon Syrup just to make this drink. And oh what a drink it is! Complex, smoky, with a hint of sweetness. A slight twist to the traditional Old Fashioned. Proof Syrups have transformed my home bartending game!

- Janet H.

This is as easy as it gets.

Spend less time behind the bar peeling, muddling, and meticulously measuring—just add some Proof Syrup to your favorite spirit and mix. It really is that simple.

FAQs

Yes, keep opened bottles of Proof in the fridge, and shake well before each use.

Yes, Proof Syrup does expire. Here's a flavor-by-flavor breakdown:

Traditional, Black Walnut, Maple Bacon, Pecan, Orange, and Pumpkin Spice have a shelf life of 2 years from bottling date.

Basil, Citrus Sour, Ginger, Honey, Lavender, Mint, Rosemary, Compassion Fruit, and White Peach have a shelf life of 8 months.

Hibiscus, Classic Grenadine, and Pomegranate have a shelf life of 3 months.

All of our syrups are made with the highest quality fresh, natural, perishable ingredients and anything we could do or add to lengthen shelf life would affect taste. We chose to trade lengthy shelf life for fresh, natural flavor — and we think you’ll agree it was worth it.

Most orders typically ship within 1-3 days of purchase. We update the shipping time on each product's page to reflect manufacturing timelines, so check the pages for the specific products you're buying.

No, we do not currently offer international shipping.

Yes! The number of stores offering Proof Syrup is growing every day; visit our Where to Buy & Try page to see whether there's a store near you. Don't see anything close by? Email us at wholesale@proofsyrup.com to tell us where you’d like to buy your Proof Syrup, and we’ll drop ‘em a line.

Proof Syrup makes a perfect drink every time.

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