Wasn’t me but we did a tour with this guy and it was awesome!

http://eyepreferparistours.com/chocolate-and-pastry-tour/

We booked one with "With Locals" and it was not great. That said, it was a last minute book. The reviews for this person were mixed. We booked it anyway. Nicest lady in the world but was a horrible tour.

Heed the reviews.

We booked our tours with TripAdvisor. Pick the ones with good reviews. We did two walking tours: a chocolate tour in St. Germain and a food tour in Marai (Jewish Qtr). Both were very good.

not sure if it was me, but we did this a couple of years ago. big hit with my kids:

https://www.getyourguide.com/paris-l16/paris-chocolate-and-pastry-tour-with-tastings-t346451/?ranking_uuid=4f92f6db-4812-4c8b-9169-2da9136e17a7

Haven't done them myself, but have always heard really positive things about tours from Paris by Mouth.

Could the person who once posted here about doing this tour please reference the company if possible? I found a number of them, including a “secret food tour” for chocolate that one could take in either st germain or monmartre, then Paris Walks has one, a chef has another. Thanks!