And you thought getting your hands on KBS was difficult.

Founders Brewing Co.'s highly coveted variation on the beer, CBS - Canadian Breakfast Stout - is likely being bottled again. The brewery filed a label with the Alcohol and Tobacco Tax and Trade Bureau for the beer, an imperial stout brewed with a blend of coffees and chocolates, then aged in bourbon barrels that also housed maple syrup.

CBS was previously bottled in 2011, and was in such high demand, reports surfaced of bottles selling on eBay at drastically inflated prices - and an empty bottle even fetched $51.

The beer was brewed again and released in kegs only in 2014, and has resurfaced sporadically since.

The CBS bottle release is likely part of Founders' celebration of its 20th anniversary. The brewery also filed labels for a few other limited, premium beers, including Sweet Repute, Lizard of Koz, Bolt Cutter, and Project Pam.

Founders' KBS, or Kentucky Breakfast Stout, is released annually in March to much fanfare. It's essentially the same formula as CBS, minus the maple syrup barrels.