Pamela Druckerman is the author of the book and this is a recipe that
is apparently quite popular in France.

http://www.cakestudent.com/yogurt-ca...nging-up-bebe/

For those who don't know, she's from the Wall St. Journal and lives in
France, where she observed that the parents there seem to be much more
in control of their kids - and the kids don't depend on parents for
entertainment, especially. She doesn't shy away from what she doesn't
like about French parenting, either - such as lack of social & medical
support for mothers who want to nurse. Her book is a bestseller right
now. Some have pointed out that the French style is pretty much the
same as what the American one was 50-60 years ago.

And, she writes, even preschoolers in France are expected to help cook
things such as this cake without making an awful mess - and with
minimal help!

Only trouble was, I made it this morning and it seems that either
Druckerman forgot to say that one should use TWO loaf pans (I haven't
tried using a 9-inch cake pan yet), OR she should have said to bake it
for about 90 minutes, not 45! Of course, I kept testing it with a
knife - about three times in all - so it came out fine.

Here's another version that I haven't tried:

http://babywithatwist.wordpress.com/...s-yogurt-cake/

It includes rum and lemon extract.

And finally, here's what one commentator said about the book's
naysayers:

"Let's see, French moms don't:

"Feed their kids McDonald's every day, expose their children to
religion (and the nonsense that is intelligent design, etc), don't
raise them to believe that sex is awful but violence is ok, don't have
a disdain for education (or elitism as we like to say in the US).

"That's just to name a few, so yes it is entirely possible that they
are better parents."

Lenona.