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.