Preheat the oven to 350°F. Spray 13 x 9-inch baking pan with non-stick cooking spray.
Spread out a single layer of Oreo cookies. In an even layer, pour the can of sweetened condensed milk over the cookies. Using a spatula, smooth the Cool Whip on top.
Evenly sprinkle your chocolate cake mix over that. If there are lumps, rake them out with a fork.
Finally, slice the butter and place it on top, covering as much surface area as possible to avoid dry spots.
Bake for 40-45 minutes.
The Oreo cookies on the bottom become a chocolaty crust, the condensed milk takes on the color and consistency of caramel, and the Cool Whip and butter create a cake with a brownie texture.
NOTES:
The texture of this dessert is best when served warm. If the cake is overbaked or cold, the texture will be too hard.
If you’re going to consume it within 1-3 days, you can keep it covered at room temperature. Longer than that, you’ll want to refrigerate it.
Source:
tasteofhome.com