1. In a large bowl, combine cereal, caramel popcorn, and one cup chocolate chips or chunks.
2. Combine margarine and Marshmallow Fluff in a microwave-safe bowl. Microwave for one minute. Stir mixture until completely smooth. Add the peanut butter and stir well. Pour over the dry ingredients and stir well until completely coated.
3. Form the mixture into three-inch (seven- and- a- half-centimeter) balls, pressing firmly to ensure that the balls don’t fall apart. Place on a Gefen Parchment-lined baking sheet.
4. Melt remaining half cup chocolate chips and drizzle over the popcorn balls.