Maker’s Mark Cask Strength ranges from 108 to 114 proof depending on the barrels. Surprisingly smooth, this bourbon retains the signature, front-of-the-palate flavor’s of Maker’s Mark while making up the notes of oak, caramel, vanilla and spice. “This is what I wish the standard Maker’s Mark would be: more mature, spicier, more complex, and with a richer finish.