Westchester, Putnam NY

I am most familiar with lower Westchester County, but hopefully these will help.

The Culinary Institute of America in Hyde Park, if you can get a reservation. The Escoffier Room is French, they also have an American and Italian Room (open only for lunch).

Xavier's.  There are two, one in Garrison, and one in Piermont.  I have only been to the one in Piermont (Rockland County), but it was incredible.

Equus.  In the Castle, in Tarrytown.  A converted estate that is now a country inn.  Very elegant.  More continental american food than anything else.

Hope this helps.

Also, check out Zagats online.  They have a Northern Suburbs of NY volume.

Amy

Scarsdale Cafe is excellent  although not French.

If you get to Goshen in Orange County, then Ille de francais is fantastic. I also understand that Petit Bistro in Rhinebeck in Northern Dutchess is great.

Bon Apetit