It's National Cookie Monster Day! November 2nd, 2020. It's a day to celebrate his birthday! When he first appeared on Sesame Street he didn't have a big role or even a name, but by the second season he was one of the most popular characters on the show. Celebrate today by eating cookies, making a cake, or just plain yelling "cookies for me!!" all over the house!! Here's a mashup of our favorite scenes featuring Cookie Monster eating!!