The whoopie pie, alternatively called a black moon, gob (term indigenous to the Pittsburgh region), black-and-white, bob, or "BFO" for Big Fat Oreo (also recorded as "Devil Dogs" and "Twins" in 1835), is an American baked product that may be considered either a cookie, pie, sandwich, or cake.
Get more content like this and the inside gist on all the fun things that happen at Healthsoothe straight to your inbox when you Subscribe to the Healthsoothe newsletter. Do it now!