Gooey Chocolate Butter Cake bars recipe that is so fudgy and tastes like both cake and brownies! Recipe is easy to make with a box of cake mix and 6 other ingredients.

The Best Fudgy Chocolate Butter Cake Recipe
This Gooey Chocolate Butter Cake is seriously fudgy, moist, and downright irresistible. Think half cake, half brownie, 100% chocolatey comfort in every bite. The first bite feels like a warm hug, and trust me—you’ll want another. Chocolate Butter Cake bars have officially stolen my heart, and I guarantee they’ll steal yours too!
The best part? You don’t need anything fancy to make this decadent treat. Most bakers already have everything in their kitchen! The star of the show is a box of devil’s food or chocolate cake mix, plus just six other simple ingredients.
PS: Want to make the recipe but only have yellow cake mix? Try my Cake Mix Butter Cake! PSS: Feeling extra indulgent? Top your cake bars with my Chocolate Frosting for the ultimate chocolate experience.
How to Make
This recipe is made in a 13×9 baking dish, so prepare that by spraying with nonsick spray (bottom and sides) and preheat your oven to 350 degrees F.
Add cake mix and butter (softened) together in a large mixing bowl and mix with an electric hand mixer. This won’t be super creamy, but once you add in 2 eggs and continue mixing, it will start to look like a cake mix.
Pour this cake mix mixture into the bottom of your baking pan.
In the same bowl, mix together cream cheese, powdered sugar, cocoa powder, remaining 2 eggs and vanilla. Again, use the hand mixer. This recipe calls for 4 cups of powdered sugar which equals a 16 oz box.
Spread this mixture on top of the first mixture in the baking dish.
Bake for 45 minutes. The cake will appear not cooked after 45 minutes in the middle, but this is what makes it so fudgy. Trust me on this one. Remove from oven and allow to cool.
Cut into how many slices you want. We usually do 9-12, but you could even do 18 bars as these will fill you up pretty quickly.
Now that hug you need – eat your Gooey Chocolate Butter Cake slice and enjoy!
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Gooey Chocolate Butter Cake
PrintIngredients
- 1 15.25 ounce box of chocolate or devil's food cake mix
- 1/2 cup butter softened
- 4 eggs
- 8 ounce cream cheese
- 4 cups powdered sugar (equals 16 oz box)
- 2 tablespoons cocoa powder
- 1 teaspoon vanilla
Instructions
- Preheat oven to 350 degrees F. Spray a 13×9 baking dish with nonstick spray.
- Cream cake mix and butter together in a large bowl with electric hand mixer. Add 2 eggs and continue mixing. Pour mixture into the bottom of the dish.
- In the same bowl mix together cream cheese, powdered sugar, cocoa powder, remaining 2 eggs and vanilla Spread this mixture on top of the first mixture.
- Bake for 45 minutes. Allow to cool before cutting and serving into desired number of slices.
Suzanne Perkins says
I love this recipe, but sometimes the bottom layer bubbles up through the top layer. How can I prevent this from happening please?
Jcary says
Can you substitute chocolate chips for cocoa powder?
Lisa Mazur says
Excellent dessert! My Chocolate lovers ate it all!
Buck's Doe says
Lovely, standard boxed cake ‘butter cake.’ I have always cut the powdered sugar to 2 cups, still plenty sweet. Not sure why I haven’t used a chocolate mix before, duh!
baconish says
I made this in past but I made a mistake and used brownie mix instead of cake mix. It was one of the best mistakes! Do everything same except switch to box brownie mix for the cake mxix
Kathy Valdez says
I haven’t made it yet. Thepan looks like a 9×9 but you say use 13×9??
Pamela says
Hey Kathy, you can use a 9×9 or 13×9. I originally used 9×9 (and that’s what I use personally everytime) but some people have had troubles with it almost bubbling over due to choice of ingredients, so I upgraded to 13×9 to make it work for everyone. Hope this helps.
Mary smith says
Can I use a 9×13?
Pamela says
Yes, please use a 13×9 baking dish. Enjoy the butter cake! 🙂
Ashley says
Can you sub homemade chocolate cake for this?
Pamela says
Absolutely!
Jessica says
Making this for a snow day!!!!