Prepare Your Oven:
Preheat your oven to 350°F (175°C). Grease or line an 8×8 inch baking pan with parchment paper.

Prepare the Brownie Layer:
In a medium bowl, whisk together Bella Del Sol Organic sunflower oil and sugar until well combined.
Add eggs and vanilla extract, and mix until smooth.
Stir in cocoa powder, flour, salt, and baking powder until just combined. Do not overmix.
Spread the brownie batter evenly into the prepared baking pan.

Prepare the Cheesecake Layer:
In another bowl, beat cream cheese and sugar until smooth.
Add egg and vanilla extract, and beat until well combined and creamy.

Assemble and Bake:
Pour the cheesecake mixture over the brownie batter in the pan, spreading it evenly to cover.
Use a knife or toothpick to gently swirl the cheesecake mixture into the brownie batter for a marbled effect.

Bake
in the preheated oven for 25-30 minutes, or until the edges are set and the center is slightly firm to the touch.

Cool
completely in the pan on a wire rack before cutting into squares.