Creating Easy Brownie Bottom Cheesecake can be simple if you carefully follow these steps:

1. Preheat the Oven: Begin by preheating your oven to 350°F (175°C). Grease a 9-inch springform pan.

2. Make the Brownie Base:
– In a mixing bowl, combine melted butter and sugar. Stir until well blended.
– Add in the eggs one at a time, mixing after each addition.
– Stir in vanilla extract.
– In another bowl, sift together flour, cocoa powder, salt, and baking powder.
– Gradually fold the dry ingredients into the wet ingredients, mixing until just combined.

3. Pour the Brownie Mixture: Pour the brownie batter into the prepared springform pan, spreading it evenly across the bottom.

4. Bake the Brownie Layer: Bake in the preheated oven for 20 minutes, then remove it and let it cool slightly.

5. Prepare the Cheesecake Mixture:
– In a large bowl, beat the softened cream cheese until smooth and creamy.
– Add sugar and continue beating until well incorporated.
– Mix in the eggs, one at a time, ensuring each is fully blended before adding the next.
– Stir in sour cream and vanilla extract until just combined.
– Lastly, fold in flour until smooth.

6. Layer the Cheesecake Mixture: Slowly pour the cheesecake mixture on top of the cooled brownie base, spreading it evenly.

7. Bake the Cheesecake Layer: Return the pan to the oven and bake for an additional 30-35 minutes. The cheesecake should be set and slightly jiggly in the center.

8. Cool the Cheesecake: Turn off the oven and crack the door open, allowing the cheesecake to cool gently for 30 minutes. This helps to prevent cracking.

9. Chill in the Refrigerator: Once cooled, cover the cheesecake and place it in the refrigerator for at least 4 hours, or overnight for best results.