Creating these scrumptious Oreo Cheesecake Brownies is easier than you might think. Just follow these step-by-step instructions and you’ll end up with a delightful dessert.

Step 1: Prepare the Brownie Batter

1. Preheat your oven to 350°F (175°C) and line a 9×13-inch baking dish with parchment paper, leaving some overhang on the sides for easy removal.
2. In a large mixing bowl, combine melted butter, granulated sugar, and brown sugar. Mix until well incorporated.
3. Add the eggs, one at a time, beating well after each addition. Stir in the vanilla extract.
4. In a separate bowl, sift together the flour, cocoa powder, salt, and baking powder. Gradually add the dry mixture to the wet ingredients, mixing until just combined.

Step 2: Make the Cheesecake Layer

5. In another bowl, beat the softened cream cheese and sugar until smooth and creamy.
6. Add the egg and vanilla extract, continuing to beat until fully incorporated and smooth.

Step 3: Assemble the Brownies

7. Pour about two-thirds of the brownie batter into the prepared baking dish, spreading it evenly.
8. Spread the cheesecake mixture over the brownie layer.
9. Dollop the remaining brownie batter over the cheesecake mixture. Use a knife or toothpick to gently swirl the two layers together for a marbled effect.
10. Sprinkle the crushed Oreo cookies over the top.

Step 4: Bake and Cool

11. Bake in the preheated oven for 35-40 minutes or until the brownies are set and the edges start to pull away from the sides of the dish.
12. Allow the brownies to cool completely in the pan before lifting them out using the parchment paper overhang. Cut into squares and serve.