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Chocolate Brownie Bundt Cake

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close up shot of Chocolate Brownie Cake on a serving tray
Chocolate lovers will adore this chocolate brownie cake recipe which creates a moist and decadent cake drizzled in thick, homemade rich chocolate ganache.
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Table of Contents
  1. Brownie Cake Recipe Ingredients
  2. Substitutions And Additions
  3. How To Make Chocolate Brownie Cake Recipe
  4. How To Serve This Fudgy Brownie Cake
  5. How To Store Brownie Bundt Cake
  6. You’ll Love This Chocolate Brownie Cake Recipe
  7. Brownie Cake Mix Recipe FAQ
  8. More Recipes You’ll Love
  9. JUMP TO RECIPE
  10. Even More Recipes

This chocolate brownie cake takes everyone’s favorite chocolate cake and adds brownie mix to create a divine combination! Rich fudge brownie mix is blended with chocolate cake batter to make this unbelievably decadent chocolate dessert.

close up shot of Chocolate Brownie Cake with a slice being taken away

You Need To Know

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Main Ingredients: Chocolate cake mix, fudge brownie mix, eggs, water, oil, mayonnaise, chocolate chips, heavy cream.

Quick Steps: Mix ingredients, bake in a bundt pan, make ganache, pour over cooled cake.

Total Time & Yield: 2 hours 10 minutes, Makes 16 servings.

Why This Recipe:

  • What sets this chocolate brownie cake apart from others is the use of mayonnaise, which adds an extra layer of moisture and creaminess without altering the flavor, something you won’t find in most traditional brownie cakes.
  • Many other recipes stick to sour cream or butter, which deliver near equal richness but can’t match the distinct moistness that mayonnaise provides.
  • Additionally, the ganache here is made with heavy cream, offering a smoother and silkier finish compared to cake recipes that opt for simpler powdered sugar glazes.​
  • This combination of moisture-boosting ingredients and luxurious ganache creates a more decadent dessert experience.
  • If you’re looking for a cake that marries rich, chocolatey flavor with perfect texture, this recipe is your best bet.

Brownie Cake Recipe Ingredients

Chocolate Brownie Cake raw ingredients that are labeled

You’ll need:

For The Cake:

  • 1 (15.25-ounce) box of chocolate cake mix (Any chocolate cake mix should do. I always use Betty Crocker – it has pudding in the mix.)
  • 1 (18.3-ounce) box of fudge brownie mix
  • 4 large eggs
  • 1¼ cups of water
  • 1 cup of vegetable or canola oil
  • ½ cup of mayonnaise
  • 1 cup of chocolate chips, I used semi-sweet chocolate chips, but you could use any milk or dark chocolate

For The Ganache:

  • 1 cup of heavy whipping cream
  • 2 cups of chocolate chips

Substitutions And Additions

CAKE AND BROWNIE MIX: We love using the Ghirardelli brownie mix or Duncan Hines moist cake mix for this chocolate cake!

CHOCOLATE CHIPS: Get creative with your chocolate chips. White chocolate, butterscotch, or mint chocolate chips can add unique and delightful flavors to your cake while keeping it gooey and delicious.

TOPPINGS: You can use sprinkles to top this chocolate Bundt cake if you desire.

How To Make Chocolate Brownie Cake Recipe

STEP ONE: Preheat your oven to 350°F.

STEP TWO: In a large bowl, combine the box of cake mix, the box of brownie mix, eggs, water, oil, and mayonnaise.

Stir or mix these ingredients with an electric mixer until it’s well combined. Fold in the chocolate chips and keep stirring until they are well mixed in.

cake mix, the box of brownie mix, eggs, water, oil, and mayonnaise combined in a bowl

STEP THREE: Lightly spray a 12-cup Bundt pan with a non-stick cooking spray and pour the batter in evenly. 

PRO TIP:

Please note that it is very important that you are using a 12-cup Bundt pan for this recipe. If you are using a smaller pan, it will take longer than the indicated time to cook.

cake batter poured into a bundt pan

STEP FOUR: Bake your cake for 45 to 50 minutes or until a toothpick comes out of the center of the cake clean, or with just a few crumbs.

cake baked in a bundt pan

STEP FIVE: Cool your cake for 10 to 15 minutes and remove it from the Bundt pan to cool the rest of the way on a cooling rack.

PRO TIP:

Carefully run a rubber spatula around the sides and center of the Bundt pan before removing the cake to help it come out cleanly. Place a cooling rack on top of the Bundt pan and then invert it to remove the cake from the pan.

STEP SIX: When the cake is cooled, prepare the ganache.

STEP SEVEN: To start your ganache, heat the heavy cream in a small saucepan or in a microwave-safe container until it’s steaming.

IMPORTANT: Don’t allow your cream to boil! When it’s steaming, it’s ready.

STEP EIGHT: Pour the cream over the chocolate chips in a small bowl.

STEP NINE: Cover your chocolate with a plate for two to three minutes to contain the heat and allow the chocolate chips to soften.

ganache ingredients being whisked together in a bowl

STEP TEN: Whisk until the melted chocolate mixture forms a smooth, glossy ganache.

STEP ELEVEN: Pour the ganache over the cake and serve.

PRO TIP:

Place a clean baking sheet under the wire cooling rack before pouring the ganache over so that the drips are caught for easy cleanup.

ganache being poured over cake

How To Serve This Fudgy Brownie Cake

Add a scoop of our no-churn vanilla ice cream to your chocolate fudge brownie cake. This rich chocolate cake is ideal for a special occasion, especially if you are celebrating a chocolate lover.

Pair your chocolate brownie cake with a steaming cup of freshly brewed coffee or pumpkin spice latte. The bitterness of the coffee complements the sweetness of the cake, creating a perfect balance.

For even more great chocolate desserts, try our mayo cake or our hot fudge sundae cake.

How To Store Brownie Bundt Cake

Having leftovers means you have a little treat to enjoy later. here’s how to store them to enjoy later.

IN THE FRIDGE: You can keep your leftover cake in the fridge for up to five days in an airtight container.

IN THE FREEZER: Freeze your ultimate brownie cake in a freezer-safe container for up to one month.

Make sure to thaw your cake in the fridge before eating! Keep in mind, your ganache won’t freeze as well as the cake.

close up shot of a slice of Chocolate Brownie Cake on a plate

You’ll Love This Chocolate Brownie Cake Recipe

This delectable chocolate brownie cake is a rich, moist cake drizzled with a thick chocolate ganache. Combine the flavor of classic brownies with moist cake batter to make this amazing double-chocolate brownie cake.

Brownie Cake Mix Recipe FAQ

Can I freeze this chocolate cake?

You can freeze your chocolate brownie cake for up to one month.

Can I frost this with chocolate buttercream or another chocolate frosting instead of ganache?

If you prefer different frosting, you are more than welcome to replace the ganache with frosting or buttercream.

What is the difference between chocolate cake and brownie cake?

The difference between chocolate cake and brownie cake is that the brownie cake tends to be denser, while the chocolate cake will be fluffier due to the differences in ingredient quantities.

What is the difference between brownie mix and cake mix?

A cake mix will contain more leavener to make it rise and become fluffy and airy, while a brownie mix contains very little, resulting in a denser cake.

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close up shot of Chocolate Brownie Cake on a serving tray

Brownie Cake

5 from 70 votes
Chocolate lovers will adore this chocolate brownie cake recipe which creates a moist and decadent cake drizzled in thick, homemade rich chocolate ganache.
Prep Time 20 minutes
Cook Time 50 minutes
Total Time 2 hours 10 minutes
Servings 16

Ingredients
  

Cake

  • 15.25 ounces chocolate cake mix (Any chocolate cake mix should do. I always use Betty Crocker – it has pudding in the mix. I used Triple Chocolate Chunk variety for this.)
  • 18.3 ounces fudge brownie mix
  • 4 large eggs
  • cups water
  • 1 cup vegetable oil, or canola oil
  • ½ cup mayonnaise
  • 1 cup chocolate chips (I used semi-sweet chocolate chips, but you could use milk chocolate or dark chocolate)

Ganache

  • 1 cup heavy whipping cream
  • 2 cups chocolate chips

Instructions
 

  • Preheat oven to 350°F.
  • In a large mixing bowl, combine chocolate cake mix, brownie mix, eggs, water, oil, and mayonnaise. Stir or mix with an electric mixer until well combined. Fold in chocolate chips and stir to combine.
  • Lightly spray a 12-cup bundt pan with non-stick cooking spray. Spread batter evenly into a bundt pan.
  • Bake for 45 to 50 minutes or until a toothpick inserted into the center of the cake comes out clean, or with just a few crumbs.
  • Cool cake for 10 to 15 minutes; remove from bundt pan to cool the rest of the way on a cooling rack.
  • When the cake is cooled, prepare the ganache.
  • Heat the heavy cream in a small saucepan or in a microwave-safe container until steaming.
  • Pour cream over chocolate chips in a small bowl.
  • Cover with a plate for 2 to 3 minutes to contain the heat and allow the chocolate chips to soften.
  • Whisk until the mixture forms a smooth, glossy ganache.
  • Pour the ganache over the cake and serve.

Video

Notes

  • Please note that it is very important that you are using a 12-cup bundt pan for this recipe. If you are using a smaller pan, it will take longer than the indicated time to cook.
  • Carefully run a rubber spatula around the sides and center of the bundt pan before removing the cake to help it come out cleanly. Place a cooling rack on top of the bundt pan and then invert it to remove the cake from the pan.
  • Don’t allow your cream for the ganache to boil! When it’s steaming, it’s ready.
  • Place a clean baking sheet under the wire cooling rack before pouring the ganache over so that the drips are caught for easy cleanup.

Nutrition

Calories: 490kcal | Carbohydrates: 45g | Protein: 5g | Fat: 34g | Saturated Fat: 17g | Trans Fat: 1g | Cholesterol: 70mg | Sodium: 385mg | Potassium: 119mg | Fiber: 1g | Sugar: 26g | Vitamin A: 292IU | Vitamin C: 1mg | Calcium: 58mg | Iron: 2mg
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This recipe was developed, tested, cooked and photographed by the Spaceships Kitchen. From our dinner table to yours, we hope you think it's out of this world!

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    Comments

  1. Jen says

    5 stars
    This cake is amazing! My kids say it is their new favorite dessert. Perfect combo of rich, chocolate, moist perfection. 5 stars for sure!

  2. Jennifer Robinson says

    Have you made this as anything other than a Bundt? I don’t have a bundt pan but really wanted to make this. Any suggestions?

  3. Linda says

    5 stars
    I used 2 regular cake pans . After cooled i added a layer of marshmallow fluff in the middle, added the 2nd layer of cake and topped off with the Chocolate Ganache.
    Yummy

  4. Laurie says

    5 stars
    This was fabulous! I made it 3 times in 5 days. First time, exactly as written. I had trouble getting it out of the pan so second time I used cooking spray and cocoa powder to help. Was great! The third time I made it into cake layers! I had some extra batter so made 4 muffins. It was fabulous each time. Great recipe!

  5. Dawn Bradley says

    For the chocolate chips that are used in the cake, I’d use mini chips. For the ganache, I’d add a tsp of vanilla bean paste! I’m going to make this on Tuesday for my son & daughter-in-law!

  6. ruth A cameron says

    my great grand daughter is a big,big brownie lover and she would add her favorite reddi whip and sprinkles on top.she eats a brownie or brownie mug daily and i believe she would eat as much of this as she could get away with.lol.she is 7

  7. Irene Gillingham says

    5 stars
    Looks awesome!! Definitely gonna make this as your instructions will make it turn out perfectly!! Well done❤️

  8. Andrea says

    I wouldn’t add anything to this cake! I made it before & it is delicious just the way it is! One of my favorites!

  9. Flofrommo says

    5 stars
    I would add strawberries to anywhere you can. We think strawberries and chocolate are an unbelievable taste sensation.

  10. Connie Ohnemus says

    5 stars
    You don’t need any extras or topping. Looks perfect just as is. Need to get a few. Things before I can try

  11. Marilyn Hacker says

    5 stars
    I’m a chocolate lover. This recipe sounds awesome. Would go great with vanilla ice cream. Three cups of chocolate chips seems quite enough. I wouldn’t want to add more.

  12. Charlene Hsrsh says

    5 stars
    I may add some chopped walnuts or pecans. but this sounds fabulous as is.I can ‘t wait to try it.

  13. Janice says

    Haven’t tried making yet but I definitely will. Think I would try serving this with some type of berry on the side.
    Looks delish!!!

  14. JENNIFER says

    This sounds amazing! I am going to try making it gluten free, and serving with fresh strawberries 🍓 yum!

  15. Kathy Taylor says

    5 stars
    I would add chocolate sprinkles into the mix. add more chocolate chips. drizzle caramel over the top and serve raspberries on the side.

  16. Lori Pennington says

    5 stars
    Chocolate brownie cake is a favorite at our house ì always put extra chocolate chips in mine I use the mini chocolate chips next time I am gonna drizzle carmel on top…..

  17. Karen says

    5 stars
    I’ve used dark chocolate chips on top, milk chocolate chips and espresso chips. I have added mini M&Ms and crushed malt balls to the top of as well.

  18. Christy says

    5 stars
    This looks fantastic! I will definitely be trying! I would drizzle with white chocolate instead of the chocolate ganache and serve with sliced strawberries. Thanks for the great recipe! 🙂

  19. Carol Peck says

    5 stars
    The brownie cake looks delish!!! Although perfect as it is, I would add strawberry slices and whipped cream to the top. Why not?!

  20. Shannon says

    5 stars
    Yummers,looks so good! Im making your fried chicken recipe today for Sunday dinner,can’t wait to try it😊 Have a good day!

  21. Nancy says

    5 stars
    Can’t wait to try. This is a chocoholic’s dream. I would not put sprinkles on it unless they were chocolate sprinkles.

  22. C Coppola says

    This looks and sounds delicious! Fresh raspberries mashed into a syrup with more fresh ones would be a perfect compliment.

  23. Marilyn Vescovo says

    5 stars
    I’m going to make this for all the July birthdays we have coming up. I would drizzle some caramel sauce on top. Yum!!

  24. Nicole Fortier says

    5 stars
    I think that putting caramel on it would be amazing.
    I have a tendency to use more chocolate chips than the recipe calls for.
    It might be delicious with something fresh mint, pineapple, black berries or cherries.
    Could also be amazing with cream cheese frosting and cherries.

  25. Marleen Ngirucherong says

    5 stars
    I always try the recipe as is before I try to change it. I love this chocolate brownie cake as is. What I did was setup a topping bar and let people top their slice with whatever they want. It was a hit. Thank you for always sharing awesome recipes. I’m going down my list making recipes that we chose to make.

  26. Pat Koch says

    I’d add the fruit only as extra decoration drooping the cake. I may add the chocolate chips onlt if I thought it might need it on my second time that I baked the cake!!

  27. Ellen Maddaloni says

    5 stars
    Ahhh. What a beautiful cake thinking the warm Raspberries but then the Ganache puts it over the top it’s all about the finish .
    Thank you for sharing.
    Ellen

  28. Susan says

    This brownie cake sounds amazing! Too bad (or good thing!) it’s Sunday night and I don’t have time to make it now. Haha!😂
    I would probably stir in Skor bits, drizzle with caramel sauce then garnish with some more Skor bits! And of course it would include the vanilla ice cream. That is not negotiable!

    *I’ve not found Skor bits in the US (similar to Heath bits but waaaay better) just in Canada!

  29. Ms AL Warren says

    5 stars
    Chocolate lovers paradise, good cake to use as a top tier if making a 2 or 3 tiered cake of different flavours.

  30. Alison Simmons says

    5 stars
    Made this last night for my son’s 16th birthday – it was so easy and soooo delicious! He opted for cream cheese icing instead of the chocolate glaze and it was a great complement.

  31. Suzanne Melson says

    5 stars
    Just made it for the second time….cover dish tomorrow….told all my friends how good it was and they asked me to bring….made it for myself for Mothers Day….I have a house full of men…so I treated myself…put in frig after a couple of days…BILs came to town and ate on it for at least four days…you will not be disappointed!

  32. Olga says

    5 stars
    This chocolate cake looks delicious!
    I must make this for a great tasting dessert. Looks very rich and something that would go good with a scoop of vanilla ice cream!

  33. Tammy says

    5 stars
    Made this cake for my husband who loves chocolate. It was delicious and easy to make. Look forward to making another one.

  34. Donna says

    5 stars
    Looks and sounds delicious. I would serve with some fresh raspberries and whipped cream. I be making it soon.

  35. Hannah H says

    5 stars
    I made this for a family get together and it was an immediate hit. I have been asked to bring this cake to many occasions since. I typically double the ganache and accent with strawberries or raspberries. Delicious!

  36. Maureen says

    5 stars
    Have been making this cake for 5 years. Found same recipe on Pinterest back then and always a hit with everyone. Saw this, made it and was just as good. Only thing different was the addition of mayonnaise in it in this one. This was delicious. Love Easy delicious recipes, Especially Chocolate ones!!

  37. GiGi says

    5 stars
    BIG HIT at a party last night. Will be making this cake for a long time and many celebrations!!!!♥️

  38. Esmeralda G says

    5 stars
    This cake was so good and very easy. My husband loved it. It tasted just like a brownie but was moist and fluffy like a cake and the ganache was so creamy and delicious. Thank you for this recipe, definitely going to make it again!

  39. Vivian says

    5 stars
    So easy to make and absolutely delicious. I know I will be making this again. Thanks you
    Chocolate Brownie Cake

  40. Elena says

    5 stars
    This is by far the best chocolate cake I’ve ever eaten !! This comment from everyone that shared this cake with me!!
    Made exactly as written!
    Thank you for the recipe!!

  41. Becky says

    5 stars
    I’ve made this a few times & received rave reviews each time. My favorite way to make it is to replace the chocolate chips with cream cheese chips & use ghiradelli white chocolate chips for the ganache! AMAZING!

  42. Lynn says

    5 stars
    Excellent recipe. Followed the instructions without making any changes and it turned out delicious. Thank you for sharing. My son loves chocolate cake and this was a hit and now his favorite.

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