The ultimate experience would be a week with Patricia Wells in Provence or Paris! These programs book up well in advance and are also pricey. The Provence week (Sunday dinner through Friday lunch) is $5,000, excluding lodging.
I've also heard very good things about Kate Hill's program in Gascony.
Were you wanting to focus on one region or move around a bit? The cuisine in France is so regionally-oriented, I think most tours like this are based in just one region. I'd love to hear what you decide to do.
Wow Dana! That would be so much fun. You know the reason I chose to come live in Italy and not France is because I LOVE French pastures and I don't like Italian pastries or desserts. It's just self preservation . . .