Several factors can make an apple cake moist and soft: -Apples: The moisture in the apples contributes to the overall humidity of the cake. When the apples are baked, they release their natural juices, which add moisture to the cake. -Oil or butter: Adding oil or butter to the batter helps to keep the cake moist by trapping the moisture inside the cake. -Brown sugar: Using brown sugar instead of white sugar adds moisture to the cake and helps to keep it soft. -Buttermilk or yoghurt: Adding buttermilk or yoghurt to the batter helps to make the cake moist and tender. -Baking powder and baking soda: Using the right amount of baking powder and baking soda can help the cake rise and become light and airy while retaining moisture. -Eggs: Eggs help to bind the ingredients together and add moisture to the cake. By incorporating these ingredients into the recipe and following the correct baking techniques, you can achieve a moist and soft apple cake that will surely be a crowd-pleaser.