all-purpose flour • pecans, toasted and chopped fine • old-fashioned rolled oats • packed light brown sugar • granulated sugar • ground cinnamon • table salt • unsalted butter, melted • Fuji, Gala, or Golden Delicious apples, peeled, cored, halved, and cut into 1/2-inch-thick wedges • granulated sugar • ground cinnamon (optional) • apple cider •