The top marketers for each megabrand reveal to 'Fast Company' their winning formula for the snack of your dreams.

The Reese’s Oreo Cup reimagines the classic candy with a sweet twist. The cup features a layer of milk chocolate and a layer of white creme, filled with Reese’s signature peanut butter swirled with Oreo cookie crumbs.

We tried the new Oreo x Reese’s collab—here’s what to expect from the nostalgic cookie-cup combo launching in stores this September.