Baking usually comes in recipe-precise ingredients and multi-step efforts, with hours upon hours of labor brought together by the oven heat. It's rarely something you throw together and be done in a flash. Unless, of course, you are making apple turnovers, and you already have the three bare essentials. Sheets of puff pastry, applesauce, and a glaze, plus just a bit of preparation and hands-off cooking, and voilà, a golden batch of fall desserts ready in no time.