Jenna Barnard on Instagram: "This cookies & scream snack mix is festive, easy to make, and the perfect Halloween treat! Just like puppy chow, chex cereal is coated in chocolate but tossed in a mixture of powdered sugar and crushed Oreo cookies. You can leave as is or mix in Halloween M&Ms to add some extra flair to this spooky snack - it's so simple yet so irresistible! Full recipe is now on my website "