Chocolate-Filled Cookies Recipe by Carla Williams Ingredients * 1 cup unsalted butter, softened * 1 ¼ cups granulated sugar * ½ cup light brown sugar * 1 large egg * 1 large egg yolk * 1 teaspoon vanilla extract * 3 1/3cups cake flour * ½ cup dark cocoa powder. * 2 tablespoons cornstarch * 1 teaspoon baking powder * ¼ teaspoon baking
by Joel Martens