Preheat your oven to 325°F and prepare your cake pan by greasing it generously.
Melt the chocolate chips and butter in the microwave, stirring every 30 seconds until smooth.
Whisk in sugar, followed by gently incorporating the eggs and milk until well blended.
Pour this mixture into your prepared pan, setting aside as you work on the cheesecake layer.
In another bowl, whip together cream cheese and white sugar until light and fluffy.
Mix in milk and eggs, ensuring no lumps remain.
Pour the cheesecake mixture over the chocolate layer in your prepared pan, spreading it evenly.
Place the pan in a water bath and bake for about 45 minutes.
Allow the cheesecake to cool in the oven for an hour, then transfer it to a wire rack.
Cover and refrigerate for at least four hours or overnight for best results.