One of Sierra Nevada Brewing Co.’s most popular stouts is getting a brand new variant inspired by the flavors in a famous candy.

According to a label filed with the Alcohol and Tobacco Tax and Trade Bureau (TTB), that beer is Barrel-Aged Peanut Butter Cup Narwhal, a 12.7 percent ABV imperial stout aged in bourbon barrels with cocoa nibs and “natural peanut flavor” that will be packaged in 16-ounce cans.

As the name suggests, the base beer is the Chico, Calif.-based brewery’s Barrel-Aged Narwhal, an 11.9 percent ABV imperial stout brewed with six different malts and two different hops before being aged in bourbon barrels for “nearly a year” and debuted in 2013 packaged in 750ml bottles. In addition, the barrel-aged version is a variant of the brewery’s Narwhal imperial stout, a beer that debuted in 2012.

There have been a number of different barrel-aged Narwal variants released over the years, including Barrel-Aged Raspberry Narwhal, Willett Barrel-Aged Narwhal and Rum Barrel-Aged Narwhal.

An email sent to the brewery for additional information was not immediately returned.