Wild Turkey Master's Keep Cornerstone Rye is one of the most ambitious rye releases in the Master's Keep series — a limited-edition bottling from Master Distiller Eddie Russell that showcases what extended aging and a thoughtful mashbill can do for American rye. Bottled at 109 proof and aged 9 years, Cornerstone uses a 51% rye, 37% corn, 12% malted barley recipe that sits at the low end of the legal rye spectrum, which means corn sweetness plays a noticeable supporting role alongside the spice.

The nose opens with caramel and black pepper, brightened by citrus peel and a hint of mint — classic Wild Turkey DNA, but with a depth and refinement that comes from years in No. 4 char barrels. On the palate, rich oak takes the lead, layered with baking spices, vanilla bean, dried dark fruit, and a whisper of honey that weaves through the spice. It's a textured, layered experience that rewards slow sipping and repeated nosing. The non-chill filtration retains every bit of natural flavor and viscosity, which shows in the mouthfeel.

The finish is long and warming, with lingering oak, peppery rye spice, and a slow tobacco-leaf fade. At 109 proof, it carries the complexity well into the back palate without becoming harsh — testament to both Russell's blending skill and the quality of the barrel selection. Cornerstone shines best neat or with a single ice cube; at this price point and rarity, mixing it into cocktails feels like a missed opportunity, though it would make a remarkable Manhattan or Boulevardier for someone who can spare a pour.

At $170–$200 MSRP — and often considerably more on the secondary market — Cornerstone is unapologetically a collector's bottle. It's not trying to be a value proposition. What it offers is craftsmanship: 9 years of patient aging, a non-chill filtered presentation, and the considered hand of one of America's most respected master distillers. For Wild Turkey loyalists and serious rye collectors, this is one of the most rewarding pours in the Master's Keep tradition.