Making the Oreo Dump Cake is incredibly easy. Just follow these steps:

1. Preheat Oven: Preheat your oven to 350°F (175°C).
2. Prepare Baking Dish: Grease a 9×13-inch baking dish with cooking spray or butter.
3. Layer Oreo Cookies: Evenly distribute half the Oreo cookies in the bottom of the baking dish, breaking them if needed to fit.
4. Mix Cake Batter: In a large bowl, combine the chocolate cake mix, milk, vegetable oil, and eggs. Stir until just combined; it’s okay if there are a few lumps.
5. Deposit Cake Batter: Pour the cake batter over the layer of Oreos.
6. Add Chocolate Chips: If you love extra chocolate, sprinkle chocolate chips over the top of the batter.
7. Add Remaining Cookies: Top the cake batter with the remaining Oreo cookies, distributing evenly.
8. Bake: Place the dish in the preheated oven and bake for 45-55 minutes, or until a toothpick inserted in the center comes out clean.
9. Cool: Once done, remove from the oven and allow the cake to cool for about 15 minutes before serving.

The steps are straightforward, ensuring even beginner bakers can create an amazing dessert with ease!