Pleasantly Tart

I think it was nine years ago when Jean-Bertrand gave us a memorable dessert, a kind of upside-down apple tart.  I was delighted by two things: first, by the tart itself; and second, by the discovery that actual French people cook from recipes by Julia Child.  (And why not?  They’re thoroughly tested and in their way perfect.) Anyway, what Julia calls La Tarte des Demoiselles Tatin stuck in my mind, and since we had a dinner party last night, I thought I’d give it a try. I’m not really a dess...