Reese’s Puffs Big Puffs Cereal! While I don’t know if this has been spotted yet, it’s due as another Walmart exclusive for the next few months. Let us know if you spot it!
These were originally tested in limited markets back in 2018 (along with Cinnamon Toast Crunch Churros and Fillows) as a snack called “Reese’s Puffs XL” noting that they were 3X bigger.