So can I just use a madeleines recipe? Or is it different? And what kind of chocolate is it? Frosting or ganache or something? Thanks
Yes, any madeleines recipe will work.
Frostings and ganache do not harden so they are not suitable for dipping cookies. You’ll need to either temper chocolate or use candy coating.
A lot of neighborhood bakeries from the 60’s used candy coatings because they are cheap. But I will warn you they do not taste very good.
Candy coatings, aka candy melts can be purchased at most a big box craft stores (JoAnns, Michaels, Hobby Lobby), and Walmart. The brands sold in stores are of the poorest quality, perform the worst, and taste the worst.
The better brands are sold online: Merckens and Guittard A’Peels. These brands are a much better quality, perform better, and taste better. And of course they cost more.
If you decide to go with real chocolate I would recommend Guittard semi sweet chocolate as it’s a high quality chocolate used by a lot of pastry chefs and it’s very easy to temper. It’s available at most Targets.