Line a 9 X 13 pan with parchment and lightly coat with baking spray or butter.
In a large bowl, toss the Cocoa Puffs and the Cocoa Krispies to combine. Set aside.
Add the butter and marshmallows into a large pot. Stirring constantly, melt over medium heat until smooth.
Quickly pour in the Cocoa Puffs and Cocoa Krispies into the melted marshmallows and gently stir with a wooden spoon to coat.
Immediately dump into the prepared pan and gently press. Promptly sprinkle with mini chocolate chips and sparkling sugar.
Cool at room temperature for one hour. Using parchment wings, lift from the pan and cut into 12 squares.
Notes
Store in an airtight container for up to two days at room temperature or in the refrigerator for one week. Recipe Notes and TipsKeep an eye on the marshmallows making sure they don't burn to the bottom of the pot. To clean the sticky marshmallow pot, fill with water and bring to a boil. Carefully dum to water and rinse away the remains. Be careful not to burn yourself!