How to Reheat Dump Cake
You can reheat peach dump cake in the oven or the microwave.
For the oven: preheat it to 350°F, wrap a slice of cake in foil and heat for 5 - 10 minutes until warm.
For the microwave: place a slice of cake on a microwave safe plate, drape a damp towel over it, and heat for 20 - 30 seconds.