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!!

4.85 from 53 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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  • Cindy says:

    I baked this yesterday (12/8/19) and found it to be very dry. Almost like it was overbaked. If I make it again, I’ll check it for doneness at 40 minutes.

    Also, I’ll use milk instead of water and melted butter instead of oil.

    I wasn’t impressed with it as done by the recipe.

    But the ganache was amazing as always 🙂

  • Charlotte Roberts says:

    Cindy, it gets moister as it ages. I stuck with her directions though.

  • Vicki Lintz says:

    This recipe is perfect; never dry. I want to make it ahead of time because I have a ton of baking to do(holidays, you know). Can the cake be frozen for a few days and add the ganache later?

  • Julia says:

    This is the second time I made this cake both times came out prefect it my to go recipe every one has enjoyed

  • Teresa says:

    My name is Teresa Burnett I love this cake my family was shocked how wonderful this is thanks so much for the recipe

  • Mehwish says:

    Hey Amanda, thank you for this recipe. This one is great. I am a baker in Pakistan and i use this recipe in all my cakes. People love this chocolate fudge brownie cake. Thank you so much. Thousand of smiles and prayers for you.

  • Kate says:

    I am going to make this for my sons 30 th
    Should I refrigerate the cake. I will make it a day ahead.

    • Amanda Rettke says:

      If you do refrigerate, just be sure to take it out of the refrigerator an hour before serving. 🙂

  • Michele D says:

    Can this be made as a sheet cake or does it need to be in a bundt?

  • Marisol says:

    Do you use 2 cake mix boxes along with the brownie mix or is it either the 15 or 18 oz box. I’m a bit confused.

  • WENDY KENNEY says:

    Ohhhhhhh yeah! Great cake for chocolate lovers! Easy and delicious!

  • Fran Stanley says:

    Thank you for sharing with us and the World your wonderful recipes.

  • Dorothy Lowman says:

    I use a cake carrier to travel – put cake on plate, sit on lid & put large cake holder part over top ( it’s all just upside down) make sure it is fastenened. I sit it on floor of car behind a front seat to travel. If you feel it needs cushioning, can surround with a lap through. Haven’t had a problem yet when I do this !

  • Liz says:

    I made it, we love it, so easy. And I made the lemon bandit, oh ssssooo good.

  • Jackie says:

    Thank you so much for this,
    Foolproof, amazing, Impressive, delicious, moist cake, love it. Made it lots of times. Family favourite. Yummy.

  • Angelina says:

    This looks delicious. I am going to try it. I’m not a great baker , but I think I. An do this. 🙂

  • Angelica85 says:

    Cant wait to try it. Im wondering tho if you could do cupcakes with this?

  • Joanne says:

    What size brownie mix does this use? Some are “family size” meant for 9×13” pans and some are meant for 8×8 pans???? I want to try this but wasn’t sure about which brownie mix the recipe requires.

    • Amanda Rettke says:

      Standard size, not a family size. 🙂

  • CHARLOTTE says:

    Made this for church function. Was a big hit. Very rich

  • Jenny says:

    High altitude adjustments? Live at nearly 7000 ft and would like to try this recipe.

  • Rickie says:

    We LOVE this cake. I, personally, am not a big fan of cake because they tend to be a little dry, and icing is too sweet.

    However, I prefer brownies! Your cake is the best of both.

    Today, I will be making another one. My husband has requested it a few times since I made one in November.

    Thank you for this recipe!

    • Amanda Rettke says:

      That is great to hear Rickie!!! Thrilled you are enjoying everything! <3

  • Rabia says:

    Thank you so much for sharing this recipe. Made this cake 2 days ago and more then half of the cake is already gone. Really delicious!!!!

  • Jewel says:

    Can I put this in a 9 x 13“ pan?

  • Debbie Brewer says:

    I made this cake for my husband and added chocolate chips to the batter. He LOVED it!

  • Barbie says:

    I found this cake to be quite dry and was disappointed with that. The glaze however was great!

  • Leanna says:

    Can you use this recipe with a cupcake pan?