Happy to help!
Oh, I shoulda linked to a first-hand source where she herself wrote “comma-la” as the pronunciation (no particular accent on syllables). It is in her book, and also towards the bottom of this piece has that excerpts from her book: https://abcnews.go.com/Politics/book-excerpt-kamala-harris-truths-hold/story?id=60234101
Alternate story from https://www.etymonline.com/word/cheesecake