Ingredients
Instructions
- Preheat oven to 350°F
- Spray the bottom only of a 13 x 9 inch metal baking pan with nonstick cooking spray.
- Reserve 1 cup of the cake mix; set aside.
- In a large bowl place remaining cake mix, 1 of the eggs, and 1/4 cup melted butter.
- Blend 1 to 2 minutes with an electric mixture on low speed until well blended.
- Press mixture into prepared pan.
- In medium bowl mix remaining 3 eggs, sour cream, brown sugar and remaining 1/2 cup melted butter with electric mixer set on low speed until well blended.
- Add reserved cake mix, beating 2 minutes on medium speed until mixture is smooth; stir in chocolate chips.
- Pour over prepared crust.
- Bake for 35 to 38 minutes, until just set and light golden on top.
- Cool completely.
- Cut into bars and sift with cocoa powder if desired.