Acidity in applesauce plays a key role in affecting cake texture. It reacts with baking soda to create lift, resulting in a lighter, fluffier crumb. This is especially important in an applesauce spice cake recipe, where the balance of moisture and leavening is essential. Too much acidity can cause gumminess, while too little may lead to dense results. To know more visit here https://foodclub.com/recipe/applesauce-spice-cake