Making the OREO Dump Cake is as easy as 1-2-3! Just follow these simple steps:

1. Preheat the Oven: Preheat your oven to 350°F (175°C).
2. Mix Cake Ingredients: In a large mixing bowl, combine the chocolate cake mix, instant chocolate pudding mix, milk, vegetable oil, and eggs. Mix until smooth and well blended.
3. Add OREO Cookies: Gently fold in the crushed OREO cookies and semi-sweet chocolate chips until evenly distributed throughout the batter.
4. Prepare the Pan: Grease a 9×13 inch baking pan with non-stick cooking spray.
5. Pour the Batter: Pour the cake mixture into the greased baking pan and spread it evenly.
6. Bake: Place the pan in the preheated oven and bake for 40-45 minutes, or until a toothpick inserted in the center comes out clean.
7. Cool the Cake: Once baked, remove it from the oven and allow it to cool for 15-20 minutes at room temperature.
8. Add Topping: Spread the whipped topping evenly over the cooled cake, creating a creamy layer on top.
9. Garnish: For decoration, sprinkle any remaining crushed OREO cookies over the whipped topping.
10. Chill Before Serving: If you prefer it chilled, you can refrigerate the cake for an hour before serving.

This step-by-step guide will have you baking OREO Dump Cake like a pro in no time!