Sips & Sites & Bites

There’s no shortage of whiskey collaborations these days, but every now and then one comes along that actually feels fresh. That’s exactly what’s happening with the new release from Bardstown Bourbon Company and Japan’s legendary Mars distilleries … and whiskey fans are probably going to want to move quickly if they hope to find a bottle.

The new Distillery Reserve Mars Single Malt Japanese Blend is officially landing May 29, and it’s doing something that’s surprisingly rare in the whiskey world: creating a true co-aging experience between Kentucky bourbon and Japanese single malt whisky instead of simply finishing one spirit in another’s barrel.

In other words, this isn’t just bourbon that took a quick vacation in a Japanese whisky cask.

Instead, single malt whiskies from Mars Komagatake and Tsunuki distilleries were shipped from Japan to Kentucky and added directly into barrels containing mature Bardstown bourbon. Then the spirits aged together for another full year, sharing the same barrel and evolving side by side through one long Kentucky summer.

That extra aging time sounds like it paid off in a big way.

The Komagatake single malt brings fruit-forward notes thanks to time spent in Umeshu plum liqueur barrels, while the Tsunuki whisky adds spice and delicate wood tones from rare Sakura cherry wood casks. Layer all of that onto a base of 10- and 16-year-old Kentucky bourbons, and the result sounds like something built for whiskey geeks and adventurous drinkers alike.

According to Bardstown Master Blender Dan Callaway, the goal was true integration rather than dominance from either style.

And honestly, that approach feels pretty clear from the tasting notes alone. Expect caramelized plums, roasted malt, vanilla bean, baked cherry, toasted oak, and a finish designed to showcase both bourbon richness and Japanese whisky elegance without either one stealing the spotlight.

The bottle itself lands at a healthy 109.8 proof and comes in Bardstown’s signature 375mL Distillery Reserve format for $99.99.

Of course, there’s a catch … availability is extremely limited. The release will only be sold through Bardstown Bourbon Company’s distillery gift shop and Louisville tasting room, making this one likely to disappear quickly once word gets out.

What makes the whole project even more interesting is that this collaboration isn’t finished yet. Mars is already working on a companion release at its Tsunuki Distillery in Japan, where Bardstown bourbon is currently aging alongside Mars whisky stocks in another experimental blend. So this may end up becoming one of the more fascinating cross-cultural whiskey projects we’ve seen in years.

For Bardstown, it’s another bold swing in a Distillery Reserve lineup that already includes experiments with Mizunara oak, Calvados barrels, and Garryana oak. The company has built a reputation for pushing whiskey boundaries without losing sight of tradition, and this newest release might be one of its most ambitious efforts yet.

For fans of bourbon, Japanese whisky, or simply unique whiskey-making experiments, this bottle feels like one worth chasing.