Chocolate Cake with Chocolate Buttercream Frosting

by | May 24, 2021 | 2 comments

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This Chocolate Cake is THE Chocolate Cake. It has rich chocolatey layers, a smooth chocolate buttercream, and checks every box on the list. It’s really the only cake you need.

chocolate cake with chocolate buttercream frosting with slice taken out

The Chocolate Cake Origin 

I used to love using boxed Devil’s Food cake mixes. I learned from my first cake decorating class back in 1998 to start with a basic cake mix and doctor it up a bit. It made a great cake with good flavor. I received lots of compliments over the years and no one ever knew it came from a box! However, over the years, cake mixes changed. The amount decreased over time and I noticed my cakes baked up thinner and the flavor changed for the worse. I was tired of subpar results, so I decided to create my own Chocolate Cake recipe from scratch. 

I spent time researching, testing, baking, and retesting chocolate cakes. I had chocolate cakes all over my counter. There were six cookbooks laid out across my table, comparing and researching. This cake needed to have the structure to stack four layers high, be moist and flavorful, but not have too dark of a chocolate flavor that it wouldn’t pair with my Chocolate Buttercream Frosting or Easy Chocolate Mousse. It needs to be endlessly versatile and a cake my children could also easily make. 

One moment on the right day, I had a “eureka!” moment! Adding a touch of Dutch-process cocoa powder made this cake perfect. This Chocolate Cake has the perfect balance of moisture and texture I hoped for. My husband even calls this cake “The Only Cake.” I hope you enjoy this cake as much as we do!

chocolate cake with chocolate buttercream frosting on cake stand on table

Chocolate Cake & Chocolate Buttercream Ingredients

  1. Cocoa Powder – essential for a rich, chocolate flavor! I use Hershey’s 100% Natural Unsweetened Cocoa Powder. 
  2. Buttermilk – I make my own buttermilk. I add 1 T lemon juice to a cup and then enough milk to equal 1 C or 8 ounces. 
  3. Dutch-Process Cocoa – Yes, there are two types of cocoa in this cake! Dutch-preocess cocoa is processed with alkali and will specify that in the ingredient list. I use Hershey’s Special Dark 100% Cacao Dutched Cocoa. 
  4. Salted Butter – Using salted butter is necessary to make the Chocolate Buttercream lick-the-spoon delicious!
chocolate cake with chocolate buttercream frosting

Chocolate Cake Components

  1. Chocolate Cake: Make sure to sift together the dry ingredients first. Then add the liquids. You only need to mix long enough to combine all the ingredients together. If you will be layering these, bake them at 325*F so the tops stay flat. 
  2. Chocolate Buttercream Frosting: Start with salted butter and beat it until it’s smooth. I like to use my stand mixer for this. Once the butter is smooth, add the cocoa and powdered sugar. Cover the mixer bowl with a damp towel to avoid spraying powder all over the kitchen! Once they are combined into a powdery mixture, add the milk and vanilla. After mixing, if your frosting is still too dry add extra milk, one tablespoon at a time until it reaches the perfect consistency. 
  3. Decorating: You can decorate this cake however you want. I like to pipe extra Chocolate Buttercream Frosting on the top and base of the cake and then add shaved chocolate curls to the top. 
chocolate cake with chocolate buttercream frosting on plate with chocolate shavings
chocolate cake with chocolate buttercream frosting and chocolate shavings on top

Assembling the Chocolate Cake

  1. Start by placing one layer of chocolate cake on your cake stand or plate. Layer frosting on top, then add the second layer. Coat the whole cake in Chocolate Buttercream.
  2.  I use a Wilton 2D or 1M star tip to decoratively pipe extra frosting onto the cake. You can create swirls or stars of buttercream to make it look pretty.
  3. Add chocolate shavings. I use a potato peeler to shave long curls off of a bar of Hershey’s Milk Chocolate or Hershey’s Special Dark Chocolate. 

This cake is divine and every bite is an experience. I hope you love making it and sharing it with your loved ones!

chocolate cake with chocolate buttercream frosting on cake stand

Looking for more delicious cake recipes? Try these:

chocolate cake with chocolate buttercream frosting pinterest pin
chocolate cake with chocolate buttercream frosting with slice taken out

Chocolate Cake with Chocolate Buttercream Frosting

Yield: 2 (9-inch) cake rounds or 1 (9x13) cake & 6 cupcakes
Prep Time: 30 minutes
Cook Time: 30 minutes
Additional Time: 1 hour 30 minutes
Total Time: 2 hours 30 minutes

This Chocolate Cake is THE Chocolate Cake. It has rich chocolatey layers, a smooth chocolate buttercream, and checks every box on the list. It’s really the only cake you need.

Ingredients

Chocolate Cake

  • 2 ¼ C (10 oz) all-purpose flour
  • ½ C + 1 T (2 oz) cocoa powder
  • 2 C (14 oz) white sugar
  • 1 tsp salt
  • 1 tsp baking powder
  • 2 tsp baking soda
  • 2 tsp Dutch-processed cocoa powder
  • 2 C (16 oz) buttermilk
  • 2 large eggs
  • 1 C minus 1 T (7 oz) vegetable oil
  • 1 ½ tsp vanilla

Chocolate Buttercream Frosting

  • 2 C (16 oz) salted butter, room temperature
  • 1 C (3.6 oz) cocoa powder
  • 7 C (32 oz) powdered sugar
  • 2 tsp vanilla
  • 7 T milk + 3 T milk, if necessary

Instructions

Make the Chocolate Cake.

  1. Preheat oven to 325*F for a flat cake top or 350*F for a domed cake top. 
  2. Prepare two 9-inch round cake pans by spraying with non-stick spray, lining bottom with a circle of wax paper, then spray with non-stick spray again. 
  3. Sift together dry ingredients. Then add wet ingredients and mix to combine. Batter will be thin. 
  4. Divide batter equally between two pans (about 25-26 ounces per pan).
  5. Bake for 30 minutes, until you can touch the center of the cake and it bounces back. Let cool in the pan for 5 minutes. Turn out onto wire cooling racks, peel the wax paper off the bottom and cool completely before spreading the frosting or decorating. 

Make the Chocolate Buttercream Frosting.

  1. Soften the butter, but do not melt. 
  2. Using a stand mixer, beat butter until it is smooth. 
  3. Add cocoa and powdered sugar. Beat butter, cocoa, and powdered sugar until combined and looks like a dry uniform mixture of cocoa dust. Scrape bowl. 
  4. Add vanilla and milk. Beat until frosting is light and creamy. If too thick add an additional 3 T of milk, one tablespoon at a time. Caution, overbeating will result in too many air pockets while frosting.

Assemble.

  1. Place one cake on a cake stand or plate. Cover top with frosting. 
  2. Add second cake. Coat tops and sides with frosting. 
  3. Decorate, if desired. I like to pipe swirls of frosting on the top and around the bottom, then add shaved chocolate curls.

Notes

  • I make my own buttermilk. I add 1 T lemon juice to a cup and then enough milk to equal 1 C or 8 ounces. 
  • If you want to use a 9x13 cake pan this cake mix makes enough for one 9x13 and 6 cupcakes - perfect if you want a treat before serving your cake!
  • High Altitude - This cake is new to my repertoire. I have not sufficiently tested it at high altitudes. Please adjust according to the altitude in which you live according to your usual pattern.

2 Comments

  1. This looks delicious! I just want to clarify the amount of oil. The list states: 1 C minus 1 T (7 oz) vegetable oil, but those are two different amounts. Is it a cup less 2 T or is it 7.5 oz?

    • I have 3 quality metal measuring cups. When filled with oil, one measures 7.6 oz, one measures 7.3 oz, one measures 7.0. Some plastic measuring cups will weigh even more or even less. Online you’ll find that one cup vegetable oil equals 7.69 oz. As one tablespoon of oil weighs .5 oz, it’s safe to give the measurement 1 C minus 1 T of oil in this recipe. This is why it’s important to weigh ingredients and you don’t have to wash as many dishes 😊


Hi, I’m Missy. Welcome to Taste Before Beauty. For 28 years I’ve been developing recipes that taste delicious, before they look delicious.

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