These are best eaten the day they are made. However you can store tightly wrapped on counter for no more than 2 days or they will become really dry. Warm for a few seconds in the microwave to freshen if needed.
If you would like to freeze them don't frost them. Let them cool completely then place in a freezer bag and freeze for up to 2 months. Thaw completely before frosting. Warm for a few seconds in the microwave to freshen if needed.