In the year 2000 in Frankfort, KY, a small cadre of wheated bourbon barrels were rolled into a Buffalo Trace warehouse and left to mature. The cherry-picked crop of barrels grew in number over the course of the decade, and Buffalo Trace blended a batch of those together to release Weller Millennium, a rare, ultra-aged 99 proof wheated whiskey.
Weller Millennium joins the lineup of legendary Weller bourbons, including William Larue Weller, Men's Journal's best bourbon of 2024. However, Millennium isn't technically a bourbon.