Halloween Muddy Buddies

0 Place the Chex cereal in a large mixing bowl and set it aside.
1 In a microwave-safe bowl, combine the chocolate chips, peanut butter, and unsalted butter. Heat in the microwave in 30-second intervals, stirring after each, until the mixture is smooth and well combined. Stir in the vanilla extract and salt.
2 Pour the chocolate mixture over the Chex cereal. Gently fold and stir until the cereal is evenly coated with the chocolate-peanut butter mixture.
3 Place the powdered sugar in a large Ziploc bag. Add the chocolate-coated Chex cereal to the bag. Seal the bag and shake it vigorously until the cereal is fully coated with powdered sugar.
4 Spread the coated cereal out onto a baking sheet lined with parchment paper to cool and set.
5 Once the muddy buddies have cooled, transfer them to a serving bowl. Add your Halloween-themed toppings - Reese's Pieces, Halloween sprinkles, and edible candy eyes. Mix them in for a spooky, colorful, and delicious snack.