The unique twist in this recipe is the rum raisins, and they definitely are a great addition. However, there is an error in the recipe. The instructions for the topping say to mix sugar into the topping, but there is no sugar listed in the ingredients for the topping. The topping must have sugar or the result tastes awful. Also, there are not enough apples (3.5 cups) for the amount of topping (3.5 cups, if you add sugar). I made the following changes to the recipe and received rave reviews. For the filling, I increased the amount of apples to 7 cups, and changed the brown sugar to granulated sugar. For the topping, I added 3/4 cup brown sugar to the listed ingredients. I also used cloves instead of ginger for the topping, but that is strictly my personal preference. If you make this recipe, be sure to add sugar to the topping!!!