Melt cream cheese and dark chocolate using a double boiler.
Add sugar and eggs, then mix well.
Add heavy cream and mix.
Sift cake flour and add, then mix until evenly combined.
Line a pan with parchment paper and pour in the batter.
Bake at 190°C for 25-30 minutes.
Let cool, then refrigerate for at least 3 hours until completely chilled.