Candy named after a kind of monkey and butter the goober?

The candy you're thinking of is Goo Goo Clusters, which are named after the goober, an old-fashioned slang term for a peanut.

The name is a play on words, combining "goober" with "clusters" to describe the candy's peanut-filled, chocolate-covered clusters.

There's no monkey connection to the candy's name.