Audrey wears two outfits while attending cookery school in Paris, which both appear in the film briefly. It’s not clear whether these were Edith Head’s work. I’m assuming they are, as Sabrina is still pre-transformation into glamorous Sabrina.
1. This is all we see of this one- a white mandarin collar shirt which buttons up the front, worn with dark apron:
2. Same apron, different top. This time a white top made out of a fine knit fabric?
The back- worn with a light coloured fairly full skirt:
Interesting collar- which seems to grow from a yoke at the neck: