In large microwavable bowl, melt chocolate on HIGH for 1 minute. Stir and heat an additional 30 seconds at HIGH or until melted. Stir in peanut butter and peanuts. Gently stir Crispix cereal into peanut butter mixture, until well coated. Place powdered sugar in 2 gallon storage bag. Add coated cereal to sugar and close bag. Gently toss until well coated. Store in airtight container in fridge. Source: Crispix box