1/2 cup graham crackers, broken into 1/4-inch pieces
In a large bowl, combine Nutella, melted chocolate, 1 cup of marshmallows, Golden Grahams and Chex. Transfer mixture to a plastic bag and toss with powdered sugar until evenly coated. Pour into a large bowl and add remaining chips, marshmallows and graham cracker pieces. Mix to combine and serve. Puppy chow is best eaten the day of.