- Microwave butter in large microwaveable bowl on HIGH 45 sec. or until melted. Add marshmallows; toss to evenly coat. Microwave 1-1/2 min. or until marshmallows are completely melted and mixture is well blended, stirring after 45 sec.
- Add cereal; mix well. Press onto bottom of 13x9-inch pan sprayed with cooking spray.
- Drizzle with chocolate; top with sprinkles. Cool before cutting into 24 bars to serve.
- Substitute: Prepare using JET-PUFFED Miniature Marshmallows.