4 cups chex cereal
1 cup white chocolate chips
1 teaspoon cinnamon
3 tablespoons sugar
1/2 cup powdered sugar
1/2 teaspoon vanilla extract
1/4 teaspoon salt
Place chex mix in a large bowl and line a large baking sheet with parchment paper.
Combine cinnamon and sugar in a medium bowl and whisk together, then set aside.
In a microwaveable bowl, microwave white chocolate chips in 30-second increments, stirring in between, until melted and smooth, then stir in vanilla extract and salt.
Pour chocolate over cereal and use a rubber spatula to fold everything together, then transfer mixture to a gallon-sized, resealable plastic bag.
Pour cinnamon sugar mixture into bag, then seal and shake together until cinnamon sugar coats all of chex mix.
Open bag and pour in powdered sugar. Seal again and shake until cereal is fully coated.
Spread puppy chow onto lined baking sheet to set and refrigerate until white chocolate has hardened again.
Serve immediately or store in an air-tight container until ready to serve.