According to Free Will Brewing Co., this is a "Coffee, oatmeal, brown ale. Incredibly rich undertones of brown sugar, caramel and graham cracker. One pound of Speakeasy coffee per brewery barrel added post fermentation creates a prominent nose and taste of coffee." This clone recipe includes a variation on the base C.O.B. beer with the addition of coconut and cocao.
The American brown ale was a style that arose through two distinct channels, the craft beer world and the homebrew world. Here is Gordon Strong's take on the American brown ale that arose via the craft beer world, such as Pete's Wicked Ale.