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Oreo Dump Cake Recipe

4.9 from 123 reviews

This Oreo Dump Cake is a quick and delightfully indulgent dessert that layers Oreos, sweetened condensed milk, Cool Whip, chocolate cake mix, and butter for a rich, fudgy treat. With minimal prep and simple ingredients, it bakes into a gooey, chocolatey cake that’s perfect for any occasion.

Ingredients

Scale

Cookies

  • 20 Oreo cookies

Dairy and Sweeteners

  • 14 ounces sweetened condensed milk (1 14-ounce can)
  • 1 8-ounce container Cool Whip, thawed for about 15 minutes
  • ¾ cup butter (1 ½ sticks or 12 tablespoons), cut into pats

Dry Ingredients

  • 1 box chocolate cake mix

Instructions

  1. Prep the Oven and Dish: Preheat your oven to 350°F (175°C) and lightly grease a 9×13-inch baking dish with butter or non-stick cooking spray to prevent sticking.
  2. Layer Oreos: Arrange two layers of 10 Oreo cookies each evenly across the bottom of the prepared baking dish to form the base of your dump cake.
  3. Add Sweetened Condensed Milk: Pour the entire 14 ounces of sweetened condensed milk evenly over the Oreo cookies to add sweetness and moisture.
  4. Spread Cool Whip: Using a spatula, spread the thawed 8 ounces of Cool Whip evenly over the sweetened condensed milk layer for a creamy texture.
  5. Sprinkle Cake Mix: Evenly sprinkle the dry chocolate cake mix over the Cool Whip layer. Use a fork to gently rake and break up any lumps to ensure even coverage.
  6. Top with Butter: Slice the ¾ cup of butter into tablespoon-sized pieces and evenly distribute them across the surface of the cake mix, covering as much area as possible without mixing.
  7. Bake: Bake the assembled cake in the preheated oven for 40-45 minutes until the top is bubbly and golden around the edges.
  8. Cool and Serve: Remove the cake from the oven and allow it to cool slightly before serving to let the layers set and make it easier to cut.

Notes

  • Make sure the Cool Whip is thawed before spreading for an even layer.
  • Cutting the butter into small pats helps it melt evenly throughout the cake while baking.
  • Do not stir or mix layers once assembled to maintain the distinct textures and layering of the dump cake.
  • The cake will be very rich and fudgy—perfect served with a scoop of vanilla ice cream.
  • You can substitute chocolate sandwich cookies if Oreos are unavailable.

Keywords: Oreo dump cake, easy dessert, chocolate dump cake, no mixer cake, layered dessert