Cookie Monster Learns about Not Eating the Marshmallow... I mean the Cookie!
Sir Ian MacKellen and Cookie Monster recently explored the concept of delayed gratification on Sesame Street. But it's not the first time Cookie Monster has taken part in his own version of the Marshmallow Experiment. He's been talking delayed gratification for quite a few years. And in these latest spots, too, Walter Mischel, the original architect of the experiment, consulted with the venerable children's show.