In a reasonably good mood and hungry for cookies, Cookie Monster approaches Gordon and a girl in possession of two boxes of chocolate and vanilla wafers. Cookie Monster is eager to join them in eating the cookies, but discovers the two are actually playing a pattern game, and not actually eating them. While Gordon and the girl step away to fetch another box of wafers and Cookie Monster is not paying attention, a mysterious figure with white gloves takes the cookies away. Gordon and the girl return to find Cookie Monster, and no cookies. They give up their game and leave Cookie Monster behind.

Cookie Monster discovers Big Bird and Snuffleupagus with another box of cookies. They too are not interested in eating the cookies, but are instead arranging the cookies into shapes. While they discuss other possible shapes, the white gloved figure appears again and steals away the cookies, unnoticed. Big Bird and Snuffy accuse Cookie Monster and abandon him in disgust.

Cookie Monster sees Maria with a tin of shortbread cookies.

C: Hoo! Cookies! Oh! Oh! Shortbread?
M: Yes.
C: Oh! Me love shortbread cookies!
M: Uh huh.
C: [about to eat cookies] Ah! Ah! Ah!
M: No no no, Cookie Monster! Please do not eat the cookies!
C: [annoyed] Ah, yeah yeah yeah, me know, me know. You want to make cute little cookie patterns.
M: Patterns?
C: Okay, okay, me know, cute little cookie shapes. Yeah yeah yeah, me know.
M: No, Cookie Monster.
C: You mean... those cookies for eating?
M: Oh, absolutely!
C: [gasps] That me kind cookie! Cowabunga! [about to eat cookies]
M: No no no, wait! You still cannot eat these cookies, Cookie Monster! I baked these for my Aunt Rosa. I'm going to send them to her in Puerto Rico.
C: [pause] All of them?
M: Well... I guess she won't miss just one. [gives C a cookie]
C: Ahh! Ah yeah! Thank you, Maria! Oh yeah! Things looking up! [eats cookie]
M: But just that one, Cookie Monster, OK? I promise that tomorrow, I will bake a whole new batch of cookies just for you, any kind you want.
C: Any kind me want? Oh! That terrific! Oh yeah, me can't wait.
M: Now, all I have to do is find a box big enough to fit this tin. [looks away]
C: Me think of possibilities. Chocolate chip cookie...

[While C thinks of kinds of cookies, gloved hands appear from off screen and take the tin of cookies. Nobody notices.]

C: ... Oatmeal raisin, a terrific cookie!
M: [returning with a box] Here's the perfect box! [notices cookies are missing] Cookie Monster!
C: Wha?
M: [accusingly] The cookies are gone! Did you eat the cookies?
C: Me? No no no no no!
M: I can't believe it, Cookie Monster! I told you I had baked those for my aunt!
C: [defensively] Why you think me eat cookie?
M: Because you're the Cookie Monster, it's what you do! Besides, who else would eat a whole tin of cookies—
C: —Yeah yeah but—
M: —including the tin?
C: But me no eat cookie!
M: [sighs] It's okay, Cookie Monster.
C: ... Okay? But...
M: It's okay, I know how much you love cookies, and I guess you just couldn't control yourself, so... don't worry about it. I'll just bake some more, it's... It's not important.
C: Not important?
M: ... It doesn't matter.
C: Not matter? It may not matter to you, Maria, but it matter to me. It matter to me lot. [dejected] Bye bye, Maria. [walks away]
M: Cookie Monster, wait. [to camera] I think I hurt the Cookie Monster's feelings.

[Maria, Big Bird, Snuffy, and Gordon approach Cookie Monster.]

C: [to himself] "You Cookie Monster! 'Couse you take cookie. Who else take cookie?" Huh!
M: Cookie Monster, what's the matter?
C: Matter? Me tell you what matter. Nobody believe me! Everybody think me take cookie!
BB: Well, you are a Cookie Monster.
G: Yeah, you love cookies more than anyone else we know.
C: Yeah yeah, me love cookie! Yeah me Cookie Monster! But me glutton, not liar!

— Sesame Street, episode 4033