Ingredients 3/4 cup whole milk 3 tablespoons fresh yeast 2 1/4 cups unbleached all-purpose flour, sifted 2 1/4 cups cake or pastry flour 2 large eggs, room temperature 1/2 cup granulated sugar 1/2 teaspoon pure vanilla extract 1/2 teaspoon kosher salt 8 1/2 tablespoons unsalted butter, cut into cubes, room temperature 2 sticks (1 cup) plus 5 tablespoons cold unsalted butter Unbleached all-purpose flour, for dusting 1 cup cream cheese, room temperature 1/4 cup plus 1 tablespoon ricotta, room temperature, strained 1 large egg, lightly beaten 1 vanilla bean, split and seeds scraped Grated zest of 1/2 lemon 1/2 cup plus 1 tablespoon confectioners' sugar 1 1/2 teaspoons cornstarch 1/2 stick (4 tablespoons) unsalted butter, room temperature, cut into cubes 5 tablespoons granulated sugar 3/4 cup plus 1 tablespoon unbleached all-purpose flour Vegetable-oil cooking spray Confectioners' sugar, for dusting Preparation Dough: In the bowl of a mixer fitted with the dough hook, beat together milk, yeast, flours, eggs, sugar, vanilla, salt, and butter on low speed until well combined....