- 8 ounces cream cheese, softened
- 2 1/3 cups white sugar, divided
- 3 eggs, divided
- 3/4 cup water
- 2/3 cup cocoa powder
- 1/2 cup butter
- 2 cups all-purpose flour
- 1/2 cup sour cream
- 1 teaspoon baking soda
- 1 teaspoon vanilla extract
- 1/2 teaspoon salt
- 1 (11 ounce) package butterscotch chips (Nestle® Toll House®)
- Preheat oven to 350 degrees F (175 degrees C). Grease and flour a 10×13-inch baking dish.
- Beat cream cheese, 1/3 cup sugar, and 1 egg together in a bowl using an electric mixer until smooth.
- Mix water, cocoa powder, and butter together in a saucepan; heat over medium-low heat until melted, about 5 minutes.
- Combine flour, remaining 2 cups sugar, 2 eggs, sour cream, baking soda, vanilla extract, and salt in a large bowl. Beat chocolate mixture into flour mixture until batter is smooth; spread into the prepared baking dish. Spoon cream mixture over batter and run a knife through the cream cheese mixture to spread into a marbled pattern. Sprinkle butterscotch chips over top.
- Bake in the preheated oven until the top is dry and the edges have started to pull away from the sides of the pan, about 35 minutes.