Westvleteren Abt 12 (Yellow Cap)
A Quadrupel brewed by Brouwerij Westvleteren (Sint Sixtus Trappistenbdij) in Westvleteren, Belgium

Thanks, Tim.
Here is my review, as I posted it on BeerAdvocate.com:

The color is deep mahogany with a fine, palamino-colored head which dissipates to lacy remnants fairly soon.

The nose is somewhat restrained, but it contains sugar, oranges, banana, and croissants.

The palate is smooth with an abundance of flavor. I get toffee, brown sugar, banana, nutmeg, chocolate, quinine and fresh grapes.

The finish is long. The bitterness, reminiscent of quinine or campari, becomes slightly more prominent as the sip of beer fades. It does not, however, overexpress itself.

This beer has extraordinary balance and complexity. It does not hit you over the head; it just states itself perfectly with nothing out of place. I equate it with Veuve Cliquot La Grande Dame.

[ serving type: bottle ]
appearance: 4
smell: 4.5
taste: 5
mouthfeel: 4.5
drinkability: 4

overall: 4.55