In this episode Sabrina and Hilda got punished for messing with the weather yet they don't get punished when she made it snow in "It's a Hot, Hot, Christmas", "Sabrina Through the Looking Glass", and "The True Adventures of Rudy Katzootie".
At the end of the episode when Harvey walks through the door, you can see Mr. Kraft walk to the front door and yet it takes him ten seconds to finally walk through.
When Sabrina was turned into a snowman we can see her face, but when Hilda was a snowman we can't.
In the end, it was snowing so badly outside that all flights were cancelled. Yet Harvey and Mr. Kraft came over without wearing any winter outerwear.
Flub: In the Beginning Salem said "Pantree" not "Peartree."
Hilda: (Reading a note that popped up from the toaster) Oh. Salem, it says here your first twelve days of Christmas present is about to arrive.
Salem: (At seeing the present) Danny Bonaduce! This is the best Partridge in a pear tree I could ask for!
Danny: Happy holidays everyone. Cool, egg-nog. You got any ham?
Salem: Back in the tree Bonaduce!
Danny: I gotta get a better agent.
(Sabrina is turned into a snowman)
Salem: Looks like the spell went wrong in an unexpected way. How unusual.
Hilda: We're swamped and we're short handed. Why do they only loan prisoners out to clean highways?
Zelda: Let's get some help from the Other Realm. 'To help us cope with the Christmas rush, send us workers in a hurry. In other words, mush!'
Hilda: You two look like Santa's elves.
Powell: The uniforms always give us away. I'm Powell, this is Pressburger.
Hilda: (Reading the elves' resumes) It says here, you left Santa's workshop over creative differences. Please elaborate?
Powell: I don't wanna slam Santa but... let me put it to you this way. He doesn't have much of a sense of humor when it comes to 'fat' jokes, not even the funny ones.
Pressburger: And that kiss between me and Mrs. Claus. There was mistletoe all over the workshop for crying out loud.
Zelda: (Reading) Tell me about your years at Harvard?
Powell: Complete fabrication.
Hilda: Thank goodness, you're hired.
Salem: Ah this beautiful carol takes me back. Mumsy would hum it while she baked gingerbread until she realised that the oven was set too high and then the screaming would start. Oh I love Christmas.
Hilda: Salem, I hate to throw a wet Yule-log on your warm, heart felt Christmas memories but... Zelda and I aren't getting you an eighteen wheel big rig.
Salem: But it's all I asked for!
Zelda: Face it, you're bad with gears.
Salem: Fine, I don't need your gifts because this year my true-love is sending me the twelve days of Christmas.
Zelda: Who is your true-love?
Salem: Moi! I ordered it from the Other Realm's online eighty-nine cents store.
Hilda: Oh I love the eighty-nine cents store. Except for that exact change rule.
Salem: It's a beautiful way for me to tell me I love me.
Mr.Kraft: (On his past Christmases) I didn't have it good like those orphans.
Josh makes a comment after decorating the Christmas tree with Sabrina: "It almost makes me wish I wasn't Muslim". But in no other episodes does he celebrate any Muslim holidays.
The title is an allusion to the song "Chestnuts Roasting On An Open Fire (The Christmas Song)", the first line of this song is "Jack Frost Nipping at Your Nose".