Combine Birch Benders Keto Ultimate Fudge Brownie Mix, 2 eggs, oil and water in a large bowl and mix well. Remove 1/3 cup of batter from the mix and set aside for the swirl. Add the remaining brownie batter to an 8×8 or 9×9 greased pan.
In a stand-up mixer with a whisk attachment, add room temperature cream cheese and one egg and whisk until a thick batter forms.
Pour the cream cheese batter on top of the brownie batter in the pan and spread to cover the top.
Take the 1/3 cup of brownie batter that was set aside and add 2 tbsp of water to thin it out slightly for better pouring.
Drop the remaining thinned out brownie batter onto the cheesecake and use a knife to create a few big swirls. Do not over swirl. You want big separate swirls of cheesecake and brownie.
Bake for 25-30 minutes, or until a knife inserted into the center of the brownies comes out mostly clean. Allow to cool completely and place in the fridge for an hour for the cheesecake to set. Enjoy!