Making a perfect Old Fashioned at home can feel like a challenge. The balance of sugar, bitters, and citrus oils is tricky to get right without the right tools. That’s where Proof Syrup’s Traditional Old Fashioned Cocktail Syrup comes in. It simplifies the process, delivering bar-quality flavor in a ready-to-use bottle.

What Makes Proof Syrup Traditional Special?

Proof Syrup started in a cocktail bar in Decatur, Georgia, with the goal of making great cocktails accessible and easy to create at home. The Traditional Old Fashioned Syrup was the first flavor launched in 2014, and it remains a fan favorite. It’s crafted with organic cane sugar, real citrus oils, and aromatic bitters, all blended to capture the essence of a classic Old Fashioned.

Unlike many cocktail mixers that rely on artificial flavors or shortcuts, Proof Syrup uses fresh, natural ingredients. This commitment to quality means you get a syrup that tastes authentic and balanced, without added preservatives that could dull the flavor.

Ingredients That Matter

  • Organic Cane Sugar: Provides the right sweetness without overpowering the cocktail.
  • Citrus Oils: Lemon and orange oils add brightness and complexity.
  • Aromatic Bitters: The bitters bring depth and the signature Old Fashioned spice.

This combination results in a syrup that’s perfectly pre-mixed, so you don’t need to muddle sugar or measure bitters separately. It simplifies the process, letting both novice and experienced mixologists enjoy the craft without the usual hassle. The versatility means it works well beyond the Old Fashioned, in everything from a whiskey sour to a creative twist on a classic highball.

Fig and thyme whiskey cocktail in a glass with ice.

How To Use Proof Syrup Traditional for Cocktails

One of the biggest advantages of Proof Syrup Traditional is how easy it makes cocktail preparation. Beginner or experienced, you can quickly build a classic Old Fashioned or experiment with variations. The syrup is crafted to enhance the natural flavors of your spirits rather than mask them.

Simple Steps To A Classic Old Fashioned

  1. Pour 1.5 to 2 ounces of your favorite whiskey into a mixing glass.
  2. Add about 0.5 ounces of Proof Syrup Traditional.
  3. Stir with ice for 30 to 40 seconds to chill and dilute.
  4. Strain over one large cube and garnish with an expressed orange peel.

This method eliminates muddling sugar cubes or adding bitters separately, saving time without sacrificing flavor. The syrup dissolves effortlessly, ensuring a smooth blend. For a deeper dive on proportions, see our guide to how much syrup goes in an Old Fashioned.

Mixing Beyond The Old Fashioned

Traditional isn’t limited to Old Fashioneds. It works well in Manhattans, whiskey sours, Gold Rushes, and any drink where you want that classic bitters-and-citrus balance. For a whiskey sour, combine two ounces of bourbon, 0.75 ounces of Traditional, and 0.75 ounces of fresh lemon juice. Shake with ice and strain into a chilled glass.

You can also infuse the syrup with additional flavors — steeping it briefly with rosemary or thyme, or with cinnamon and star anise, turns one bottle into several. That flexibility lets you tailor drinks to the season without buying a shelf of one-use bottles.

Storage, Shelf Life, and Allergy Information

Keeping Your Syrup Fresh

Traditional is shelf-stable before opening, so you can store it in your pantry without worry. Once opened, refrigerate to maintain freshness and shake well before each use. It has a shelf life of up to two years from the bottling date, the longest in the lineup.

Allergy Considerations

Traditional is nut-free, making it a safe choice for those with tree nut allergies. Proof Syrup does process tree nuts at its facility, so extreme caution is advised for people with severe allergies. The syrup contains no gluten or grape products and is vegan-friendly.

Why Choose Proof Syrup Traditional Over Other Mixers?

Many cocktail mixers rely on preservatives and artificial ingredients to extend shelf life. Proof Syrup takes a different approach, prioritizing fresh, natural flavors even at the cost of a shorter shelf life. The result is a more authentic taste that stands out in the glass.

The convenience matters too. Traditional combines sugar, bitters, and citrus oils into one bottle, eliminating the guesswork and extra steps an Old Fashioned usually requires.

Supporting Your Home Bartending Journey

There is a deep recipe library to work through, from the Perfect Old Fashioned to seasonal builds like the bourbon apple cider cocktail. Whether you stick with the classic or branch out, the same bottle covers most of it.

Whiskey sour cocktail garnished with orange peel and served over ice.

Where To Buy And How To Save

You can purchase Proof Syrup Traditional online at proofsyrup.com or at select retail locations. Subscribing offers savings of up to 30% on recurring orders and free shipping on purchases of $99 or more. There is also a rewards program where you earn points for purchases and reviews, redeemable for discounts and free products.

If Traditional has become your everyday pour, the 8 oz bottle is the sensible upgrade. For stocking a bar or a season of entertaining, the 12-bottle case covers it.

The One Bottle Worth Owning

Proof Syrup Traditional makes it genuinely easier to build a good cocktail at home. Authentic ingredients, a long shelf life, and a simple pour make it a valuable addition to any bar. Making a classic Old Fashioned or experimenting with something new, it delivers the same result every time.

Ready to start? Browse the full range and pour something worth drinking.

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