16oz can from Ratman. Nose is bourbon, vanilla, chocolate, and toffee. Clear dark brown (almost opaque) with a medium tan head. Flavor is lightly sweet with a hint of bitter to complement the woody vanilla and bourbon.

Tulip at the Breckenridge tap room - listed as a Doppelbock - dark amber - looks still - caramelized sugars and licorice in the nose - fairly toasty and malty - some oxidation and a bit of acidity through the middle - some tart cherry late before a warming bourbon finish - like the quad, I think it's been in the barrels too long and has started to deteriorate, but not nearly as much, and the malt is still holding up strong in this one.