Chocolate Brownie Cake

filed under: Cakes on November 11, 2015

This delectable Chocolate Fudge Brownie Cake is the easiest chocolate cake I have ever made! I bake it for every occasion, including holidays! We will be bringing it to parties (instructions on how to transport this cake below!) with my famous Cookie Recipes like my Sugar Cookie Recipe! (And don’t miss my 50 Best Cake Recipes!)


Chocolate Brownie Cake

My friend and I were talking about cake a few days ago. We both kind of get a kick out the uproar concerning “box mix” in the great cake debate.

She told me, “I am going to do cake mix for my next three recipes.” I think it stemmed from an incident on her facebook page where someone had gotten quite upset about her use of a box mix. She never backed down from controversy and I love that about her! When I came across this recipe of Granny’s I knew I had to make it. Not only was it a box of cake mix, but a box of brownie mix! I can’t think of anything more scandalous.

Chocolate Brownie Cake- You will NEVER guess the ingredients!!

How to Make Chocolate Brownie Cake

Make sure you ONLY add the ingredients on the ingredient list. Do not follow the directions on the box mix.

Try to sift the cake mix and brownie mix into my bowl to avoid lumps.

This is a lot of ganache! If you don’t want to use all of it on your cake, feel free to save it for ice cream or other delectable treats!

Chocolate Brownie Cake- You will NEVER guess the ingredients!!

This cake takes just moments to put together and tastes pretty darn great. The crumb is fine and the texture is smooth. I love the semi-sweet chocolate ganache but if you prefer milk chocolate feel free to substitute.

If you are looking for a from-scratch Chocolate Cake I recommend this one. Don’t forget my highly rated Brownie Recipe!

Chocolate Brownie Cake- You will NEVER guess the ingredients!!

4.86 from 55 votes
chocolate-brownie-mix-cake-768x878 (1)
Chocolate Brownie Cake
Prep Time
5 mins
Cook Time
55 mins
Total Time
1 hr

Beyond easy but definitely impressive!

Course: Dessert
Cuisine: American
Keyword: chocolate brownie cake
Servings: 12 slices
Author: Amanda Rettke
  • 1 box chocolate cake mix, both 15 ounce and 18.5 ounce work
  • 1 box (18.3 ounces) fudge brownie mix,
  • 4 eggs, room temperature
  • 1 1/4 cup water
  • 1 cup vegetable oil
  • 1 cup heavy whipping cream
  • 1 bag (12 ounces) semi sweet chocolate morsels
  1. Heat oven to 350°F. Prepare a bundt pan with bakers spray or use the butter/flour method.

  2. Combine first five ingredients in a large bowl and whisk for 2 minutes or until lumps are mostly gone.
  3. Pour batter into prepared bundt pan and bake for 50-55 minutes.
  4. When done baking, remove cake and allow to cool in pan for up to five minutes. Carefully turn cake out onto a cooling rack and cool for 30 minutes more.
  1. Place heavy whipping cream in a large microwave safe bowl and heat for about 2 minutes. You want the cream to be just boiling.
  2. Carefully pour chocolate morsels into cream... it may rise up and bubble and this is ok.
  3. Let sit for 5 minutes. Whisk the chocolate and cream until shiny and smooth, about 1 minute.
  4. Pour over cooled cake and serve.

Recipe Video

How To Transport Cake

Chill your cake before transport. I will place mine in the fridge overnight or in the freezer for a few hours before it goes in the car. A firm cake slides less and can handle more bumps and turns than a freshly baked cake does.

Of course, there is always the option of a cake carrier. Just plan ahead if this is your chosen method of transport, as there is a certain height the cake needs to be to fit in the box. I have run into issue with just a 2-layer cake that has piped dollops on top getting squished in a cake carrier. You can find extra tall cake carriers online if you know you love piping and decorating!

Lots of folks use boxes for their cakes and this is a good idea for long trips. My tips for that are; make sure the box is big enough, line the box with shelf liner, and don’t forget UNDER the box! A great trick for that is a yoga mat right under the box.

My favorite trick is to set the cake inside a springform pan. This works best for cakes that are on plates or patters. I get my 12-inch round springform pan, set the cake inside, and then set the springform pan on shelf liner on a flat surface in my vehicle. (Usually, the back or the floor, seats are too curved) When you arrive at the event you simply carry in the springform pan then remove the outer edge! This has worked brilliantly more times than I can count.

Quick note: Cakes travel best in a cool environment, so bundle up extra if it’s a long car ride. If your interior temperature is too warm, the frosting could melt and slide down the cake. You can also place ice packs around the base of a box if you chose the box method.

If you are able, bring along a “repair kit”. Extra frosting, the piping tip you used, small offset spatula, or any tools you used when decorating the cake. If you get any cracks or bulges they can be easily fixed!


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  • Sandra says:

    Easy and super delicious!! Will definitely make again and again!!

  • Marlene Brennan says:

    I’m going to try this. This weekend

  • E Landis says:

    This cake had a great flavor but it was so dry. Everybody that tasted it said you need something to drink with it!

    • Amanda Rettke says:

      Sounds like it might be a bit overcooked. Every oven is different! Try baking it for 10 min. less next time. 🙂

  • Cynthia says:

    I’ve made this cake several times before and I absolutely love it! I am on vacation right now and want to make it for my son in laws birthday, but I don’t have a Bundt pan. Can I make it in a regular rectangle cake pan?

  • C Ransom says:

    Love this cake! I’ve made it twice and most recently last week for my daughter’s birthday. We actually saved some of the ganache to add later. It is perfect when paired with fresh strawberries and raspberries and vanilla ice cream.

  • Lilli says:

    Could I sub milk for water like when doctoring biz mix for regular cake?

  • Valery says:

    Can you make this cake in a sheet cake pan

  • Ray McCue says:

    Stuck in the house because of coronavirus with nothing to do, so I picked up the mixes and made the chocolate brownie cake Delicious. I’ll pass it along to my kids and be making it again!

  • jerusha vashini benjamin says:

    i really want to know to decorate cakes and to make desserts

  • Kassie says:

    Welp it’s currently in the oven spilling everywhere lol also been in for 52 min and still like soup in middle. Idk what I did wrong. 😔

  • Kimberly says:

    I didn’t see a bundt pan size, so I used my 10″ and it’s boiled over into the bottom of my oven…my whole hose smells like burned cake…just wanted to make an Easter Cake.

  • Suzanne Weber says:

    I made this for Easter today. Excellent and so easy! I think I overbaked it by just a few minutes. Still really good. Next up, your lemon bars.

  • Janis says:

    What size box of brownie mix? I have family size…18.3 oz

    • Elizabeth Keeney says:

      Hi, Janis! I work with iambaker and am happy to help with questions. We used an 18.3-ounce box of brownie mix for this recipe, so you are all set! Have a great day!

  • sheral simon says:

    You give size of cake mix, but not brownie mix. Brownies now come in family size, so what size brownie mix?

    • Elizabeth Keeney says:

      Hi, Sheral! I work with iambaker and am happy to help with questions. We used an 18.3-ounce box of the brownie mix for this recipe. Have a great day!

  • Carla says:

    Made for Mother’s Day & quarantine boredom!, haha. Turned out awesomely!,

    • Amanda Rettke says:

      Yay! Happy Mothers Day!

  • Michelle Sepulveda says:

    Looking forward to making this cake for my family, several of us are chocolate lovers ❤

  • Maria Perez says:

    Can you make this cake ahead of time? Like pour the chocolate on the cake ahead of time?

  • Mary says:

    I love that all your recipes are easy to understand and to make thank you

  • Teresa W says:

    One of my favorite chocolate recipes to make when I need easy and delicious!

  • Jovet says:

    I’ve never been so happy and satisfied for stumbling upon this delectable and the easiest chocolate cake I have ever made. Have baked this several times, and it’s always a big hit! It’s my to-go-to cake now.
    It’s a no brainer recipe, just follow and bake, it’s that simple! And the lots of extra!
    My trick is to undertake it for 5-10 minutes, based on my oven, and it comes out perfect and moist.
    Thank you for this amazing recipe!

  • Peggy Clark says:

    Can I make cupcakes instead of a cake?

    • Elizabeth Keeney says:

      Hi, Peggy! I work with iambaker and am happy to help with questions. We have not made this into cupcakes, but you could try it! Let us know how they turn out and have a great day!

  • Shannon O'Quinn says:

    Hello, I substituted the oil with butter flavor crisco and added a little sour cream to moisten… terrible mistake.

  • Riki says:

    It was so delicious and Easy to make.

  • Victoria Linder says:

    When my 14 year old asked me for a brown and chocolate cake for her Bday. I was like say what?! Ha! But it’s her birthday and I went searching. Cam across a few, but this one caught my eye and seemed easy enough. Well, this cake was so delicious! The kids and my hubby tore this cake up! Meaning there was only only about 2 slices left by the end of the evening.
    I didn’t cover the whole cake with the ganache, but they all ask me to, so I did. We had some ganache (I like saying the word) left over and I saved it so she could have have it with some pineapple and strawberries the next day. I just sent this to a relative who’s husband’s Bday is the same day May 23rd, he also asked for a chocolate cake no frosting. So I sent her this one the next day and she’s going to make it to see if he will try the ganache covered cake. Lol. Anyways thanks for helping to make her day very special. And mine a little easier. Xoxo Victoria

  • Akanni seun says:

    Thank you so much, I really appreciate. But pls always give the recipe in Kg and grams, for better understanding. Thanks