Hoppin’ Frog Brewery is turning 11 this week.

To celebrate the anniversary, the Akron brewery released Bourbon Barrel-Aged Sippin’ Into Darkness American-Style Chocolate Martini Imperial Stout. (Which just might be the longest name ever for a beer.)

The beer, which is 12 percent alcohol by volume, is a collaboration brew made with Lervig Aktiebryggeri in Stavanger, Norway.

"This beer tastes so good because it pulls so much flavor out of the barrels," owner and brewer Fred Karm said.

It’s available on draft and in 22-ounce bottles for $15.99.

Hoppin' Frog released Sippin' -- the non-barrel-aged version -- last fall as part of its European collaboration series.