When did "My Favorite Things" become a Christmas song?

My new least-favorite Christmas song is a version of My Favorite Things that has been getting played at my local supermarket this year. Twice so far, it has tricked me into thinking that it's a bland but passable rendition of the song. But with the final "then I don't feel so bad," it rises into a brassy, gaudy crescendo that cuts through all conscious thought and demands that you listen. "Then I don't feeeeel so BAAAAAAAAAAAAAAAAAD!" By the time I've realized that what I'm hearing is uniquely horrible, it's too late for me to fumble my phone out and Shazam it. I will be better prepared next time so I can find everyone responsible and punch them in the face.

Only took two more grocery trips for it to come around again, and this time I was ready - the perpetrator is Kelly Clarkson, from her 2013 album Wrapped in Red. It actually starts to go off the rails a little earlier, with the final "raindrops on roses", around 2:12:

https://www.youtube.com/watch?v=E8_TvLkM-zo

This in no way dampens my esteem for Since U Been Gone or Breakaway, but I feel terrible for the poor workers who have to hear that every hour.

https://www.youtube.com/watch?v=ehYM_cg2DHI
I put this on and was asked mockingly if it was an Xmas song. Not sure if the person asking heard the theme or not and was thinking that well it's a show tune from a film that BBC played on Xmas day for decades so surely it counted as one. Have since seen that there are articles online set up to stop people thinking it was a Christmas song or argue against it being seen as one, which would suggest it was widely thought to be one.
Seems like it had the association since publicity prior to the film release. They were looking for a hit number like West Side Story had Maria. That included the song being sung on an Xmas special the year before the film release and from this it seems to have been picked up by others with that connotation. Apparently the song itself is sung during a summer storm in the film. I had also wondered if it was a previous song reused for the film but it was written for the stage show at least.
I think I have the source book by Maria Von Trapp somewhere too.

I put the clip to clear my ears of the trite Xmas music one of the people in the workshop keeps insisting on playing for hours. But did think it was an utterly blinding piece of music that verged on the epiphanic, semi religious de/reconstruction of a show tune. seemed to not connect with others there, shame cos gosh innit great.
Trane never did Jingle Bells did he?

this is not a christmas song.

What's the earliest version to be explicitly set in a Christmas context? Example: Tony Bennett did it on 1968's Snowfall: The Tony Bennett Christmas Album.

Wikipedia sez:

In 1964, Jack Jones became the first of many artists to include the song on a Christmas album.

Notwithstanding that it apparently debuted on a TV Christmas special in 1961, as noted above

(I’ve never thought of it as an Xmas song, or knew it was associated with Xmas in any way, btw)

she sings it in a thunder storm!

https://www.youtube.com/watch?v=b096nEKfnms

Herb Alpert in 1968 with a bit of James Bond thrown in at the end.

But did think it was an utterly blinding piece of music that verged on the epiphanic, semi religious de/reconstruction of a show tune. seemed to not connect with others there, shame cos gosh innit great.

A friend of mine was in attendance at the Titans Of The Tenor! concert at Lincoln Center in 1966. Coltrane's group went on last. It was his quintet with Alice Coltrane, Rashied Ali, Pharoah Sanders, and Jimmy Garrison, with Don and Albert Ayler plus Carlos Ward sitting in. As soon as they started, people got up to leave, so my friend ran to the now-empty seats near the front. Then Trane played the theme from "My Favorite Things," and people returned...then left again immediately after the theme was done and the solos commenced.

warm woollen mittens?
brown paper packages tied up with string?

pretty fuckin christmassy if you ask me

Here’s a sort of deep dive article: https://www.billboard.com/culture/lifestyle/my-favorite-things-christmas-sound-of-music-8078515/

Jump into the deep end: "Baby It's Cold Outside" -- Holiday Song? Rapey?

Yeah - I've been hoping we'll forego a revive of that one this year... :/

Trane never did Jingle Bells did he?

he did Greensleeves, which is a Christmas song (in the US at least, I think?)

it’s the tune of “What Child Is This”

I can totally hear his soprano on jingle bells

the arrangement would be a bit more like this in terms of harmony

https://www.youtube.com/watch?v=nZ6iKq2VDs8

when Ari Lennox recorded it:

https://www.youtube.com/watch?v=dSP9yuSa7cY