Ingredients
Equipment
Method
- Preheat the oven to 350°F (175°C) and grease a 9x13-inch baking pan thoroughly.
- In a large bowl, combine cake mix, water, oil, and eggs. Mix until smooth with no lumps.
- Pour half of the batter into the prepared pan, spreading it evenly.
- In a separate bowl, beat cream cheese, powdered sugar, and vanilla extract until completely creamy and smooth (2-3 minutes).
- Spread the cream cheese mixture evenly over the batter in the pan.
- Spoon the remaining batter over the cream cheese layer in dollops, covering as much as possible (don't worry if some cream cheese shows through).
- In another bowl, whisk cocoa powder and milk together until smooth, then drizzle over the batter in a zigzag pattern.
- Sprinkle chocolate chips evenly on top.
- Bake for 40-45 minutes, or until a toothpick inserted in the center comes out with just a few moist crumbs.
- Allow to cool completely, then refrigerate at least 1 hour before slicing for best results.
Notes
For best texture and flavor, this cake actually improves after refrigerating overnight. Can be made with chocolate cake mix for a richer version. Store covered in refrigerator for up to 5 days, or freeze for up to 3 months.