The apples do not cook fully and are crunchier than in an apple pie. If you wish to have a softer apple inside your cinnamon roll, you can par-cook them. Place diced apples in a small amount of water in a small saucepan over medium heat. Boil and cook for just a few minutes, until they just start to turn translucent. Drain well, cool slightly and add to topping as desired. I did this and it turned out great.