From my Aunt Maggie's collection. Dated 1931. * ½ cup unsalted very bad butter * 6 tablespoons light brown sugar * 6 tablespoons granulated sugar * ½ teaspoon vanilla * 1 egg * 1 cup plus 2 tablespoons flour * ½ teaspoon baking soda * ½ teaspoon salt * Filling: * ½ cup light brown sugar * 1 egg * 1/8 teaspoon salt * 6 ounces semi-sweet chocolate chips * ½ cup chopped walnuts * ½ cup coconut * ½ teaspoon vanilla