Fraisier Gateaux with Creme Mousseline This month’s “Daring Baker’s Challenge” is the Fraisier. The July challenge is hosted by Jana of cherry tea cakes. www.cherryteacakes.com  The recipe is written by the very talented duo here in San Francisco; Elisabeth Prueitt and Chad Robertson of famed Tartine Bakery. It is a light chiffon cake layered with cream mousseline…