How to Make a Guillotine, the Mezcal and Scotch Old Fashioned With an Surprising Twist

Key Takeaways:

• The Guillotine is a variation of the Old Fashioned.
• Mezcal and Scotch combine to form the core flavors.
• A fourth ingredient remains undisclosed and surprising.
• The story was featured in Robb Report on July 11, 2026.
• Jason O’Bryan authored the piece showcasing this innovative drink.

A Buzz Around a New Twist

The Old Fashioned may be one of the oldest cocktail recipes in the book, but that hasn’t stopped it from evolving. The Guillotine, as featured in Robb Report, takes the classic format and reimagines it with a genuinely surprising spin. It promises a familiar base of whiskey-like warmth, yet blends flavors you wouldn’t typically expect in a venerable American drink.

Where Mezcal Meets Scotch

Traditionally, Old Fashioneds are prepared with bourbon or rye. However, the Guillotine replaces those with the smoky depth of mezcal and Scotch—two distinct spirits that rarely share the same glass. Innovators are drawn to this pairing, which sets the stage for a uniquely layered sipping experience.

The Mystery of the Fourth Ingredient

“You’re not going to be able to guess the fourth ingredient in this Old Fashioned variation,” teases the official description of the Guillotine. While the recipe’s exact details remain under wraps, this intriguing secret captures the imagination of cocktail aficionados worldwide. With that element of mystery, the Guillotine stands out from other Old Fashioned twists.

Why This Cocktail Matters

Published on July 11, 2026, by Jason O’Bryan of Robb Report, this spotlight aims at drink enthusiasts eager to experiment. By showcasing mezcal, Scotch, and an unknown addition, the Guillotine demonstrates how a classic formula can be restructured in unexpected ways. It reflects a growing curiosity in the cocktail world, where tradition meets bold invention and underscores the ongoing evolution of modern mixology.