Chocolate Tart

This tart takes two common preparations—All-Purpose 3-2-1 Dough and Chocolate Ganache—to a wonderful and elegant conclusion. Here the ganache ratio is reduced somewhat because I’m adding a small amount of egg and flour. I like to flavor it with Grand Marnier and orange zest because I’m a sucker for the chocolate-orange flavor pairing; snooty pastry chefs may tell you this is a cliché, and you can certainly omit the o