2 1/2 cups flour 3/4 cup unsweetened cocoa 3 ½ teaspoons baking powder ½ teaspoon salt 1 cup unsalted butter, softened 1 1/2 cups packed light brown sugar 4 eggs, slightly beaten 2 teaspoons vanilla 1 cup chopped walnuts or pecans 4 ounces bittersweet chocolate, melted 2/3 cup milk 1½ cups confectioner’s sugar In a […]