These are rich, delicate, and sweet. They are good with or without frosting, and would also be great with nuts. dry ingredients: ½ cup rice flour or sorghum flour ½ cup cornstarch ¼ cup potato starch or cornstarch ¼ cup cocoa powder 1 ½ teaspoons baking powder ½ cup granulated sugar ¼ teaspoon salt ¼ teaspoon xanthan gum 2/3 cup semisweet chocolate chips, optional Wet ingredients: 1 large egg 2/3 cup milk 2 tablespoons olive oil 2 teaspoons pure ...