Chowder is worried that he might not get the gift he has his heart set on getting: An Electric Broccoli Trimmer with Detachable Non-Electric Cauliflower Trimmer, for Knishmas. Meanwhile, Mung buys a schmingerbread house from Endive, due to the fact he is unable to make one, and not wanting to break Chowder's heart at not getting a gift from Knish Krinkle, swallows his pride with asking Endive, making her believe he finally admits that she is the better chef, allowing her a chance to satisfy herself with humiliating Mung by having him ask in front of a camera. Once he does, she allows him to buy one of her shmingerbread houses and return to his catering service in shame. Chowder sees Mung buy the schmingerbread house.
As a result, he is worried and wants to trick Mung into thinking his schmingerbread house was better. After trying to ask Gazpacho, who is dressed as Knish Krinkle for help, only for him to suffer a nervous breakdown and leave his costume behind, Chowder, Panini, and Gorgonzola dress up as Knish Krinkle using the costume. However, the real Knish Krinkle comes and Chowder has to race to the schmingerbread house first in order to make Mung Daal happy. All the noise wakes Truffles up, and she orders Mung to see what's going on. Mung arrives downstairs just in time to watch as, having beaten Knish Krinkle to the house first, Chowder devours it in one bite, much to Knish Krinkle's anger. Mung is shocked at what he sees and asks Chowder why he ate the house.
He explains to Mung that he couldn't let Mung feel awful and let his pride be destroyed and saying how Knishmas wasn't about the getting, it was about the giving. Chowder ends up giving Gorgonzola a sweater, which causes him to cry tears of joy, while Chowder's present to Panini is a kiss to which her head blows away and fireworks appeared. Due to Chowder's generosity, Knish Krinkle gives Chowder what he wanted as a gift from him: An Electric Broccoli Trimmer with Detachable Non-Electric Cauliflower Trimmer. All the Chowder characters get together to wish everyone a Merry Knishmas at the end of the special, followed shortly by one final "Blah!" from Knish Krinkle.
- In one viewing of this episode, part of the theme song was cut off and it didn't show the episode's title.
- Chowder asking Gorgonzola to "shine your light tonight" is an obvious reference to a line from the song "Rudolph the Red-Nosed Reindeer".
|Nicky Jones|| Chowder|
|Dwight Schultz|| Mung Daal|
|Tara Strong|| Truffles|
|C.H. Greenblatt|| Kiwi|
- Chowder Wiki: Hey, Hey It's Knishmas!
- "Hey, Hey It's Knishmas!" at TV.com
- "Hey, Hey It's Knishmas!" at the Big Cartoon DataBase
- "Hey, Hey It's Knishmas!" at the Internet Movie Database
|Cartoon Network Studios|
|"A Space Ghost Christmas" • "George and Junior's Christmas Spectacular" • "Dexter Vs. Santa's Claws" • "Twas the Night" • "Happy Baboon Holidays" • "Fa-La-La-La-Ed" • A Johnny Bravo Christmas • 'Twas the Fight Before Christmas • "Christmas Con Carne" • Ed, Edd n Eddy's Jingle Jingle Jangle • "Christmas Evil" • Billy & Mandy Save Christmas • "A Lost Claus" • "Operation: N.A.U.G.H.T.Y." • "Have Yourself a Joyful Little Animas" • "Kamp Kringle" • "Merry Christmas" • "The Class of 3000 Christmas Special" • "Hey, Hey It's Knishmas!" • "Low Tidings" • "Holly Jolly Secrets" • "The Regular Show Christmas Special" • "Christmas" • "Uncle Grandpa Christmas Special" • "Merry Christmas Mordecai" • "Secret Santa" • "Merry Moochmas" • "Christmas Parties" • "Chill Out" • "Christmas in Space"|