Buttermilk Chocolate Cake with Fudge Icing

Buttermilk Chocolate Cake with Fudge Icing

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"This is the simplest and moistest chocolate cake I have ever found and was a favorite when I grew up. I could even whip it up as a child. This cake is also great with the boxed fluffy icing so the great chocolate flavor of the cake is not hidden."

Ingredients 1 h {{adjustedServings}} servings 421 cals

Serving size has been adjusted!

Original recipe yields 12 servings



Amount per serving ({{servings}} total)

  • Calories:
  • 421 kcal
  • 21%
  • Fat:
  • 14.9 g
  • 23%
  • Carbs:
  • 70g
  • 23%
  • Protein:
  • 5.1 g
  • 10%
  • Cholesterol:
  • 42 mg
  • 14%
  • Sodium:
  • 274 mg
  • 11%

Based on a 2,000 calorie diet

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  • Prep

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  1. Preheat oven to 350 degrees F (175 degrees C). Grease and flour a 9x13 inch pan. In a medium bowl, combine the buttermilk and baking soda. Set aside in a warm place.
  2. In a large bowl, mix together 2 cups sugar, eggs, 3 tablespoons cocoa powder, oil and 2 teaspoons vanilla until blended. Stir in the boiling water, then gradually beat in the flour. Stir in the buttermilk mixture.
  3. Pour batter into prepared pan. Bake in the preheated oven for 30 minutes, or until a toothpick inserted into the center of the cake comes out clean. Allow to cool.
  4. To make the Fudge Icing: In a saucepan, combine 1 cup sugar, 1/2 cup cocoa powder, milk, butter and 1 teaspoon vanilla extract. Bring to a boil, and cook for 1 minute. Remove from heat. Using an electric mixer, beat icing for 3 minutes, or until it thickens to spreading consistency. Pour over completely cooled cake.
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Reviews 155

  1. 179 Ratings


This cake should have 10 stars!!! I made it for my husband's birthday last night. I used a bundt pan (dusting with cocoa powder in lieu of flour) which required about an 20 minutes extra baking time. I then let the cake cool for a few minutes in the pan, and then took it out of the pan to finish cooling while I made the frosting. After the frosting was done, I put the cake back into the bundt pan and then poked holes in the bottom of the cake with a wooden spoon and a fork. I then poured about half the frosting into the holes. I would have let it sit like that for awhile but my husband was coming home so almost immediately I put the cake on the serving plate and then using a basting brush, painted the rest of the frosting onto the top of the cake. Gobs of frosting still pooled into the "hole" of the bundt cake. When my husband took the first bite, he exclaimed - "Oh My God! It's filled with chocolate!" I ***strongly*** recommend using the highest quality of cocoa powder available as it is the only chocolate in the cake. I used Ghiradelli. Also, the batter was quite runny when I poured it into the pan but it cooked up just fine. I also "made" my own buttermilk by adding 1 T. apple cider vinegar to 1 c. milk and letting it set for a few minutes. I also used 1/4 c. cocoa powder in the cake as opposed to just 3 T.. Amazing recipe!


I've never made the cake, but I have made the fudge icing and used it on other cakes. It is delicious and truly tastes like fudge. I would caution, however, that you do not beat it for the full 3 minutes if you intend to pour it over your cake (I like it poured over bundt cake). It will not flow down the sides but rather sit on the top in more of a clump. Stop beating when it looks a little thinner than what you want because it will set very fast.


After reading the reviews I decided to make a few small changes and made this a 5 star recipe (well at least to me). I added 1/4 cup of cocoa powder instead of the 3T and an extra tsp of vanilla. Also I didn't have buttermilk so I added a tsp of vinegar to a cup of regular milk. The icing was very yummy even though I burnt it while boiling. I saved it by just pouring off the good stuff and not scaping the bottom of the pot. Also I only beat it for 2 min and didn't have any problems with it being too thick. SUPER DUPER and very moist!