Set the oven to 170°C / 350°F with the fan.
Line a 20x20cm (8x8 inch) cake pan with a baking paper.
In a bowl, place the chocolate and butter.
In the microwave, in 30 second rounds, melt the chocolate with the butter until completely smooth.
Add sugar and salt to the bowl.
Mix well.
Add the eggs one at a time and mix well.
Add the ground almonds and mix until the batter is unified.
Pour the batter to the lined pan.
In another bowl mix all the cheesecake batter ingredients well.
Pour the cheesecake batter on top of the brownie batter in the pan.
With a spatula or a tablespoon, mix gently to create the marble look.
Bake for 40 minutes.
Cool the brownies completely before cutting it.
Serve and enjoy!