Apple and Prune Farmhouse Tart

Name: Apple and Prune Farmhouse Tart
Ingredients: For the yeasted crust:; 1 tablespoon dry active yeast; 1/4 cup whole milk; heaping 1/8 teaspoons ground cardamom; 1 tablespoon sugar; 1 1/2 cups whole-wheat pastry flour; 1 large egg; 3 tablespoons unsalted butter, softened; 2 pinches salt; For the filling:; 3 ounces (1/3 cup) sugar; 2 ounces (1/4 cup) unsalted butter, softened; 1 large egg beaten; 1 1/2 ounces (1/3 cup plus 1 tablespoon) whole-wheat pastry flour; 2 ounces (1/2 cup) finely ground almonds; 2 ounces (1/4 cup) buttermilk; 1/4 teaspoon baking powder; 1/2 teaspoon baking soda; 1/2 teaspoon salt; 1 Granny Smith apple, cored and thinly sliced into half moons; 3 ounces chopped prunes soaked in 1 tablespoon of Armagnac for 30 minutes; 2 tablespoons each cold butter cubed and sugar for dotting and dusting