Using only a few ingredients like butter, chocolate, and Chex cereal, this "puppy chow" is taken up a notch by adding Nutella. This Nutella Puppy Chow will remind you of your childhood.
In a very large microwave-safe bowl, melt the butter and chocolate chips together, stirring every 30 seconds until melted. Whisk in the Nutella until combined.
Pour the cereal into chocolate mixture slowly, carefully folding the chocolate over the cereal to coat using a spatula.
Scoop cereal into a gallon-sized plastic bag. Slowly add powdered sugar, close bag, and gently shake. Stop and eat or add more sugar to taste.
Notes
Storage: Puppy chow is best eaten as soon as it is made for maximum crispiness of the cereal, but you can store in an airtight container at room temperature for up to 24 hours if that's not possible.