Ingredients
Method
- Heat oven to 350°F. Grease a 9x13-inch pan. Stir together cake mix, 1/2 cup melted butter, and 1 egg until a thick dough forms. Press evenly into pan.
- Beat cream cheese until smooth. Mix in remaining 1/2 cup butter, then remaining 2 eggs, vanilla, cocoa, and salt. Gradually beat in powdered sugar until glossy.
- Pour topping over base and spread to the edges.
- Bake 35-40 minutes until edges are puffed and center jiggles. A toothpick should come out with moist crumbs.
- Cool in pan on a rack for at least 1 hour. Dust with powdered sugar, slice, and serve.
Notes
The center will look underbaked when you pull it from the oven, but it will set as it cools. Let the cake rest the full hour before slicing for the cleanest squares.
