Hershey's Reese's brand will launch Reese's Big Cup stuffed with Reese's Puffs, a combination of peanut butter, chocolate and cereal.

"Collaborations are quite popular but what we are about to unleash is next level. We knew the ultimate mashup was already within the Reese's universe, so we made it happen," said Henry Hancock, senior associate brand manager at Reese's. "We're taking chocolate and peanut butter fandom to a new stratosphere by adding Reese's Puffs cereal to our Reese's Big Cup."

This mashup will create a Reese's explosion of chocolate and peanut butter for its fans, who can grab the new Reese's Big Cups Stuffed with Reese's Puffs cereal nationwide starting in November.