What cha ma call it candy bar?

"Whatchamacallit" is a brand of candy bar produced by Hershey's.

It's a fun and playful way to refer to the candy bar, emphasizing its unique and somewhat difficult-to-describe flavor and texture.

Are you asking about the name of the candy bar, or are you trying to describe it? If you're looking for a description, I can tell you that it has a peanut butter center, caramel, and a chocolate coating.