This is from The Nanny, but I don’t know the episode. Those are the two main characters, though Fran is in a blond wig for some reason. It was made in the 90s and not in black and white, so this must have been a strange episode.

Oh! I found it, or at least this clip: https://youtu.be/82NuUC8WBko?si=30zJLoRGSBjtAnN7

Carrots, not cookies! We leave cookies for Santa, carrots and celery for the reindeer.