McDonald's sells a variety of foods, including breakfast, lunch, dinner and dessert items. One of the most popular dessert items, the baked apple pie, is a rectangular treat filled with cinnamon sugar apples. If you need to reheat your McDonald's apple pie, there is a simple method you can use that slowly heats up the pie, making it taste better than if you simply microwaved it.
Preheat your oven to 200 degrees Fahrenheit.
Place the McDonald's apple pie on a baking sheet.
Place the baking sheet into the oven once it is preheated, and allow the pie to heat up for ten minutes or until the filling is beginning to bubble.
Remove the baking sheet from the oven and allow the pie to cool for five minutes before eating.