Cobbler and Dump Cake are very similar. Traditionally, cobbler is made of a fruit filling with a biscuit, pie crust or batter topping that has been homemade and mixed together. A wet topping or dough topping. A dump cake is generally made with fruit but has a dry topping that has literally been "dumped" on top of it. Dump cake is a bit more gooey. Peach cobbler dump cake and peach cobbler with cake mix are essentially the same thing.