Oreo Dump Cake
A ridiculously simple and crowd-pleasing dessert that combines Oreos, sweetened condensed milk, and chocolate cake mix for a warm, gooey treat that's perfect for any occasion.
Ingredients
Base Ingredients
- 25 cookies Oreo cookies Use classic Oreos for structure.
- 1 14-ounce can sweetened condensed milk Do not substitute evaporated milk.
- 8 ounces whipped topping (Cool Whip), not frozen Thaw before using.
- 1 15¼-ounce box chocolate cake mix (dry) Pick a quality brand for better flavor.
- ½ cup sweet salted butter, sliced Use salted butter for balance.
Optional Toppings
- as desired additional chopped Oreos For topping.
- as desired ice cream For serving.
- as desired chocolate sauce For serving.
Instructions
Preparation
- Preheat your oven to 350°F (175°C) and grease a 9×13-inch baking pan thoroughly with cooking spray.
- Arrange 25 Oreos in a single layer across the bottom of the prepared baking dish.
- Evenly pour the entire 14-ounce can of sweetened condensed milk over the Oreo layer.
- Spread the 8 ounces of thawed whipped topping gently over the condensed milk and cookies.
- Evenly sprinkle the dry chocolate cake mix over the whipped topping.
- Arrange the sliced salted butter pieces across the top, spaced about 1–2 inches apart.
- Chop about 8 additional Oreos and scatter the pieces over the cake mix.
Baking
- Bake at 350°F for 35 to 40 minutes until the top turns golden and the filling is bubbly.
- Let the cake rest for 5 minutes before serving warm with ice cream and chocolate sauce.
Notes
For best results, layer intentionally and space butter evenly. You can assemble the night before and refrigerate unbaked. For crisper top, use convection and reduce bake time slightly.