The Rosette of Versailles: Apple Custard Tart with Walnut Crust

I offered to bring tarts to a dear friend’s family Thanksgiving and found this recipe as I was considering my repertoire. Also, geeky-dessert talk: I’m a huge fan of Ikeda Riyoko’s The Rose of Versailles (Beru Bara) fan*, so how could I pass up the tarte bouquet de roses? This tart looks and tastes elegant: the freshness…