Email to Rosemary PÂ Â Â Â Â Â Peach Cobbler Dump Cake Source of Recipe all recipes List of Ingredients 2 ( 16 oz.) cans peaches in heavy syrup 1 (18 oz.) yellow cake mix 1/2 cup butter 1/2 tsp. cinnamon or to taste Instructions Preheat oven to 375°. Empty peaches into the bottom of one 9x13 pan. Cover with the dry cake mix and press down firmly. Cut butter into small pieces and place on top of cake mix. Sprinkle top with cinnamon. Bake for 45 minutes.